{"title":"540i (G30\/G31) Suspension","description":"\u003cp\u003eSuspension for the BMW 540i G30\/G31 (B58): coilovers, lowering springs and shocks. Check the vehicle applications table on each product for exact fitment.\u003c\/p\u003e","products":[{"product_id":"h-r-sport-springs-bmw-530i-540i-m550i-xdrive-g30","title":"H\u0026R Sport Springs - BMW 530i\/540i\/M550i xDrive (G30)","description":"\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eH\u0026amp;R ride-development engineers created this Sport Spring set for the G30 5-Series for premium handling and superb ride comfort. Enhance the look of your 530i, 540i, or M550i xDrive with a reduced fender-well gap while lowering the vehicle's center of gravity for noticeably improved handling.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApprox. lowering: 1.4\" front \/ 1.3\" rear\u003c\/li\u003e\n\u003cli\u003eFits RWD and xDrive, with or without adaptive suspension\u003c\/li\u003e\n\u003cli\u003eProgressive spring-rate design for a superb balance of handling and comfort\u003c\/li\u003e\n\u003cli\u003e100% made in Germany from 54SiCr6 spring steel (290,000 psi tensile strength)\u003c\/li\u003e\n\u003cli\u003ePremium epoxy powder coating for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eLimited lifetime warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2 front and 2 rear H\u0026amp;R Sport lowering springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDirect-fit lowering springs — works with the factory dampers (incl. adaptive suspension)\u003c\/li\u003e\n\u003cli\u003eInstallation \u0026amp; technical guide (PDF): \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/hr_technical_info.pdf?v=1785886768\"\u003eH\u0026amp;R Installation \u0026amp; Technical Guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e28721-2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e540i (incl. xDrive)\u003c\/td\u003e\n\u003ctd\u003eG30\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003ctd\u003e2017–2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"H\u0026R","offers":[{"title":"Default Title","offer_id":53604191732019,"sku":"28721-2","price":424.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/p28721-2__large_1bdfb860-dc44-4198-bcf0-20eda28cb0ae.jpg?v=1783122516"},{"product_id":"eibach-pro-kit-lowering-springs-bmw-540i-g30","title":"Eibach Pro-Kit Lowering Springs - BMW 540i (G30)","description":"\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eEibach's Pro-Kit delivers high-performance handling and improved appearance for the BMW 540i (G30) without compromising ride quality. The progressive-rate springs lower the car's center of gravity to reduce body roll, squat, and dive, sharpening cornering grip and turn-in response while working with the factory dampers. The result is a more aggressive, planted stance and tighter handling that stays comfortable for daily driving. Available for both 540i (RWD) and 540i xDrive.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFront lowering: approx. 1.2 in (30 mm)\u003c\/li\u003e\n\u003cli\u003eRear lowering: approx. 1.2 in (30 mm)\u003c\/li\u003e\n\u003cli\u003eProgressive-rate spring design\u003c\/li\u003e\n\u003cli\u003eEngineered and tested for use with the factory dampers\u003c\/li\u003e\n\u003cli\u003eExcludes vehicles equipped with EDC (Electronic Damper Control)\u003c\/li\u003e\n\u003cli\u003eLowers center of gravity for improved handling while retaining ride quality\u003c\/li\u003e\n\u003cli\u003eBacked by the Eibach Million Mile Warranty\u003c\/li\u003e\n\u003cli\u003eNot an emissions-related part — no CARB EO required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSet of 4 Eibach Pro-Kit performance lowering springs (front and rear)\u003c\/li\u003e\n\u003cli\u003eApplication-specific fitment components as supplied by Eibach\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNot compatible with EDC-equipped vehicles — verify your suspension type before ordering\u003c\/li\u003e\n\u003cli\u003eProfessional installation and a four-wheel alignment are recommended after fitting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e540i (RWD) — E10-20-038-01-22\u003c\/li\u003e\n\u003cli\u003e540i xDrive (AWD) — E10-20-038-02-22\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e540i (RWD)\u003c\/td\u003e\n\u003ctd\u003eG30\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L\u003c\/td\u003e\n\u003ctd\u003e2017–2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e540i xDrive\u003c\/td\u003e\n\u003ctd\u003eG30\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L\u003c\/td\u003e\n\u003ctd\u003e2017–2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Eibach","offers":[{"title":"540i (RWD)","offer_id":53769269150003,"sku":"E10-20-038-01-22","price":395.0,"currency_code":"USD","in_stock":true},{"title":"540i xDrive (AWD)","offer_id":53769269182771,"sku":"E10-20-038-02-22","price":395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/eibach-eib-e10-20-038-01-22-30232729616454.jpg?v=1785619109"},{"product_id":"st-xa-performance-coilovers-bmw-540i-g30-rwd-b58","title":"ST XA Performance Coilovers – BMW 540i (G30, RWD) B58","description":"\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eThe ST XA coilover kit lowers the B58 G30 540i (RWD) with height-adjustable ride height and externally adjustable rebound damping. Developed alongside KW Automotive, it lets you refine the driving dynamics to suit your preference — sportier and more track-stable, or softer and more comfortable — with a simple turn of the adjustment knob.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHeight-adjustable ride height plus externally adjustable rebound damping\u003c\/li\u003e\n\u003cli\u003eTwin-tube damping principle with pressure-resistant damper housings, manufactured at KW\u003c\/li\u003e\n\u003cli\u003e16 distinct clicks of adjustable rebound damping (compression fixed)\u003c\/li\u003e\n\u003cli\u003eGalvanized strut bodies, multi-sealed with additional coating for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eAdjustable spring perch in friction-optimized polyamide composite with stainless steel insert\u003c\/li\u003e\n\u003cli\u003ePreset to ST's factory recommended damper settings, verified on KW shock dynos\u003c\/li\u003e\n\u003cli\u003eTÜV-approved; 5-year unlimited-mileage warranty\u003c\/li\u003e\n\u003cli\u003eExcludes the 530e hybrid\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSet of 4 ST XA coilovers with springs\u003c\/li\u003e\n\u003cli\u003eAdjustment collars, spanner wrenches and hardware\u003c\/li\u003e\n\u003cli\u003eDamper setup manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic damping (EDC\/Adaptive Drive):\u003c\/strong\u003e if your car has factory adaptive dampers, the electronic damping control must be deactivated using a cancellation kit (KW part no. 68511086), sold separately. Verify your damper configuration before ordering\u003c\/li\u003e\n\u003cli\u003eRide height and rebound damping are adjustable — a professional wheel alignment is required after installation\u003c\/li\u003e\n\u003cli\u003eProfessional installation and corner-balancing recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e182200BU\u003c\/li\u003e\n\u003cli\u003eEDC deactivation kit (if equipped, sold separately) — KW 68511086\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"6\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%; text-align: left;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e540i (RWD)\u003c\/td\u003e\n\u003ctd\u003eG30\u003c\/td\u003e\n\u003ctd\u003eB58\u003c\/td\u003e\n\u003ctd\u003e2017–2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"ST Suspensions","offers":[{"title":"Default Title","offer_id":53777268638003,"sku":"182200BU","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/ST_XA_COILOVERS_17bd3a97-6661-4167-af95-1b340567fd97.jpg?v=1785620767"},{"product_id":"bc-racing-br-series-coilovers-bmw-540i-g30-rwd-b58","title":"BC Racing BR Series Coilovers – BMW 540i (G30, RWD) B58","description":"\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eThe BC Racing BR Series is the most popular coilover BC makes — a fully height- and damping-adjustable kit that works equally well as a daily-driver drop or a weekend track setup. For the RWD G30 540i it pairs 30-way adjustable damping with full-length adjustable ride height, so you can lower the car and still preserve shock travel and ride quality.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e30-way adjustable damping (compression and rebound together)\u003c\/li\u003e\n\u003cli\u003eFull-length adjustable ride height — set height independent of spring preload to preserve shock travel\u003c\/li\u003e\n\u003cli\u003eMono-tube shock design with T6 aluminum lower mounts\u003c\/li\u003e\n\u003cli\u003eHigh-tensile SAE 9254 springs; Swift spring upgrade available\u003c\/li\u003e\n\u003cli\u003eFront camber plates included where the application allows\u003c\/li\u003e\n\u003cli\u003eFully rebuildable and serviceable; 1-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSet of 4 BC Racing BR Series coilovers, assembled with springs\u003c\/li\u003e\n\u003cli\u003eFront upper mounts \/ camber plates (application dependent)\u003c\/li\u003e\n\u003cli\u003eSpanner wrenches and damping-adjustment tools\u003c\/li\u003e\n\u003cli\u003eInstallation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIf your car is equipped with the optional adaptive M \/ electronic (EDC) suspension, an adaptive damper (EDC) delete or bypass is required to prevent a suspension warning light (not included)\u003c\/li\u003e\n\u003cli\u003eA professional wheel alignment is required after installation\u003c\/li\u003e\n\u003cli\u003eProfessional installation and corner-balancing are recommended; installation follows the standard BC Racing coilover procedure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eI-78-BR-RS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e540i\u003c\/td\u003e\n\u003ctd\u003eG30\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L\u003c\/td\u003e\n\u003ctd\u003e2017–2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"BC Racing","offers":[{"title":"Default Title","offer_id":53799458013491,"sku":"I-78-BR-RS","price":1215.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/BC_BR_bacc45f5-7e36-4ad8-86e1-9182e77c9ae0.jpg?v=1785961338"},{"product_id":"bc-racing-ds-series-coilovers-bmw-540i-g30-rwd-b58","title":"BC Racing DS Series Coilovers – BMW 540i (G30, RWD) B58","description":"\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eThe BC Racing DS Series is a firmer street-and-track focused coilover built on a mono-tube damper with a proprietary digressive piston that delivers more damping force at low shock speeds for sharper body control. For the RWD G30 540i it offers 30-way adjustable damping and full-length adjustable ride height in a more performance-oriented package than the BR Series.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e30-way adjustable damping (compression and rebound together)\u003c\/li\u003e\n\u003cli\u003eProprietary digressive piston for increased low-speed damping force and sharper response\u003c\/li\u003e\n\u003cli\u003eFull-length adjustable ride height — set height independent of spring preload to preserve shock travel\u003c\/li\u003e\n\u003cli\u003eMono-tube shock design with T6 aluminum lower mounts\u003c\/li\u003e\n\u003cli\u003eHigh-tensile SAE 9254 springs; Swift spring upgrade available\u003c\/li\u003e\n\u003cli\u003eFront camber plates included where the application allows\u003c\/li\u003e\n\u003cli\u003eFully rebuildable and serviceable; 1-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSet of 4 BC Racing DS Series coilovers, assembled with springs\u003c\/li\u003e\n\u003cli\u003eFront upper mounts \/ camber plates (application dependent)\u003c\/li\u003e\n\u003cli\u003eSpanner wrenches and damping-adjustment tools\u003c\/li\u003e\n\u003cli\u003eInstallation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIf your car is equipped with the optional adaptive M \/ electronic (EDC) suspension, an adaptive damper (EDC) delete or bypass is required to prevent a suspension warning light (not included)\u003c\/li\u003e\n\u003cli\u003eA professional wheel alignment is required after installation\u003c\/li\u003e\n\u003cli\u003eProfessional installation and corner-balancing are recommended; installation follows the standard BC Racing coilover procedure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eI-78-DS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e540i\u003c\/td\u003e\n\u003ctd\u003eG30\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L\u003c\/td\u003e\n\u003ctd\u003e2017–2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"BC Racing","offers":[{"title":"Default Title","offer_id":53799458079027,"sku":"I-78-DS","price":1415.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/BC_DS_3fe5ba82-99d1-441f-99eb-adc4127cb147.jpg?v=1785961339"},{"product_id":"bc-racing-er-series-coilovers-bmw-540i-g30-rwd-b58","title":"BC Racing ER Series Coilovers – BMW 540i (G30, RWD) B58","description":"\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eThe BC Racing ER Series is a motorsport-oriented coilover with 2-way independently adjustable damping — separate compression and rebound circuits — fed by external\/remote reservoirs for increased oil capacity and consistent performance under sustained track use. For the RWD G30 540i it offers full-length adjustable ride height and a high level of tuning control for dedicated track and time-attack setups.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2-way independently adjustable damping (separate compression and rebound)\u003c\/li\u003e\n\u003cli\u003eExternal\/remote reservoirs for increased oil capacity and fade resistance\u003c\/li\u003e\n\u003cli\u003eFull-length adjustable ride height — set height independent of spring preload to preserve shock travel\u003c\/li\u003e\n\u003cli\u003eMono-tube shock design with T6 aluminum lower mounts\u003c\/li\u003e\n\u003cli\u003eHigh-tensile SAE 9254 springs; Swift spring upgrade available\u003c\/li\u003e\n\u003cli\u003eFront camber plates included where the application allows\u003c\/li\u003e\n\u003cli\u003eFully rebuildable and serviceable; 1-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSet of 4 BC Racing ER Series coilovers with external reservoirs, assembled with springs\u003c\/li\u003e\n\u003cli\u003eFront upper mounts \/ camber plates (application dependent)\u003c\/li\u003e\n\u003cli\u003eSpanner wrenches and damping-adjustment tools\u003c\/li\u003e\n\u003cli\u003eInstallation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIf your car is equipped with the optional adaptive M \/ electronic (EDC) suspension, an adaptive damper (EDC) delete or bypass is required to prevent a suspension warning light (not included)\u003c\/li\u003e\n\u003cli\u003eA professional wheel alignment is required after installation\u003c\/li\u003e\n\u003cli\u003eProfessional installation and corner-balancing are recommended; installation follows the standard BC Racing coilover procedure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eI-78-ER\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e540i\u003c\/td\u003e\n\u003ctd\u003eG30\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L\u003c\/td\u003e\n\u003ctd\u003e2017–2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"BC Racing","offers":[{"title":"Default Title","offer_id":53799458242867,"sku":"I-78-ER","price":1955.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/BC_ER_03581847-66a6-443e-94ae-0d968c5aba86.jpg?v=1785961340"},{"product_id":"bc-racing-zx-series-coilovers-bmw-540i-g30-rwd-b58","title":"BC Racing ZX Series Coilovers – BMW 540i (G30, RWD) B58","description":"\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eThe BC Racing ZX Series is BC's flagship motorsport coilover with 3-way independently adjustable damping — high-speed compression, low-speed compression, and rebound — paired with external reservoirs for maximum tuning range and fade resistance. For the RWD G30 540i it delivers the most track-tested adjustability in the BC lineup with full-length adjustable ride height.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3-way independently adjustable damping (high-speed compression, low-speed compression, and rebound)\u003c\/li\u003e\n\u003cli\u003eExternal reservoirs for increased oil capacity and consistent performance under load\u003c\/li\u003e\n\u003cli\u003eFull-length adjustable ride height — set height independent of spring preload to preserve shock travel\u003c\/li\u003e\n\u003cli\u003eMono-tube shock design with T6 aluminum lower mounts\u003c\/li\u003e\n\u003cli\u003eHigh-tensile SAE 9254 springs; Swift spring upgrade available\u003c\/li\u003e\n\u003cli\u003eFront camber plates included where the application allows\u003c\/li\u003e\n\u003cli\u003eFully rebuildable and serviceable; 1-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSet of 4 BC Racing ZX Series coilovers with external reservoirs, assembled with springs\u003c\/li\u003e\n\u003cli\u003eFront upper mounts \/ camber plates (application dependent)\u003c\/li\u003e\n\u003cli\u003eSpanner wrenches and damping-adjustment tools\u003c\/li\u003e\n\u003cli\u003eInstallation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIf your car is equipped with the optional adaptive M \/ electronic (EDC) suspension, an adaptive damper (EDC) delete or bypass is required to prevent a suspension warning light (not included)\u003c\/li\u003e\n\u003cli\u003eA professional wheel alignment is required after installation\u003c\/li\u003e\n\u003cli\u003eProfessional installation and corner-balancing are recommended; installation follows the standard BC Racing coilover procedure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eI-78-ZX\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e540i\u003c\/td\u003e\n\u003ctd\u003eG30\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L\u003c\/td\u003e\n\u003ctd\u003e2017–2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"BC Racing","offers":[{"title":"Default Title","offer_id":53799458373939,"sku":"I-78-ZX","price":2565.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/ZX-1_f1401e6e-e215-477d-81a4-698a04613f66.jpg?v=1785961342"},{"product_id":"bc-racing-br-series-coilovers-bmw-540i-xdrive-g30-awd-b58","title":"BC Racing BR Series Coilovers – BMW 540i xDrive (G30, AWD) B58","description":"\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eThe BC Racing BR Series is the most popular coilover BC makes — a fully height- and damping-adjustable kit that works equally well as a daily-driver drop or a weekend track setup. For the AWD G30 540i xDrive it pairs 30-way adjustable damping with full-length adjustable ride height, so you can lower the car and still preserve shock travel and ride quality.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e30-way adjustable damping (compression and rebound together)\u003c\/li\u003e\n\u003cli\u003eFull-length adjustable ride height — set height independent of spring preload to preserve shock travel\u003c\/li\u003e\n\u003cli\u003eMono-tube shock design with T6 aluminum lower mounts\u003c\/li\u003e\n\u003cli\u003eHigh-tensile SAE 9254 springs; Swift spring upgrade available\u003c\/li\u003e\n\u003cli\u003eFront camber plates included where the application allows\u003c\/li\u003e\n\u003cli\u003eFully rebuildable and serviceable; 1-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSet of 4 BC Racing BR Series coilovers, assembled with springs\u003c\/li\u003e\n\u003cli\u003eFront upper mounts \/ camber plates (application dependent)\u003c\/li\u003e\n\u003cli\u003eSpanner wrenches and damping-adjustment tools\u003c\/li\u003e\n\u003cli\u003eInstallation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIf your car is equipped with the optional adaptive M \/ electronic (EDC) suspension, an adaptive damper (EDC) delete or bypass is required to prevent a suspension warning light (not included)\u003c\/li\u003e\n\u003cli\u003eA professional wheel alignment is required after installation\u003c\/li\u003e\n\u003cli\u003eProfessional installation and corner-balancing are recommended; installation follows the standard BC Racing coilover procedure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eI-131-BR-RS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003e540i xDrive\u003c\/td\u003e\n\u003ctd\u003eG30\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L\u003c\/td\u003e\n\u003ctd\u003e2017–2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"BC Racing","offers":[{"title":"Default Title","offer_id":53799459914035,"sku":"I-131-BR-RS","price":1215.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/4226\/2579\/files\/BC_BR_7ee1d2d3-309f-4ad9-9dff-d4aa35e81c35.jpg?v=1785961344"},{"product_id":"bc-racing-ds-series-coilovers-bmw-540i-xdrive-g30-awd-b58","title":"BC Racing DS Series Coilovers – BMW 540i xDrive (G30, AWD) B58","description":"\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eThe BC Racing DS Series is a firmer street-and-track focused coilover built on a mono-tube damper with a proprietary digressive piston that delivers more damping force at low shock speeds for sharper body control. 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