Active Autowerke Signature GESI Catted Downpipe – Toyota GR Supra A90/A91 3.0 (B58) 11-564

OVERVIEW

The Active Autowerke Signature downpipe for the Toyota GR Supra (B58) replaces the restrictive factory downpipe to help the turbo spool faster and make more power. It uses 4.5" stainless steel piping, tapers to 3.5" where a stainless flex joint is incorporated, then steps down to 80mm to meet the OEM exhaust; the diameter never drops below the stock 80mm. This version includes a 4.5" GESI G-Sport ultra high output catalytic converter, which Active Autowerke states will not set a check engine light. The turbo flange gasket is included and comes pre-installed in the downpipe flange.

SPECS

• 4.5" diameter piping, tapering to 3.5" at the flex joint and 80mm at the OEM connection
• Casted upper stainless steel V-band for precise fitment
• 4.5" GESI G-Sport UHO catalytic converter, 400 cells per square inch, full 304 stainless steel construction including the substrate
• Catalyst rated for 500 to 850 hp applications; withstands up to 1500°F; reaches operating efficiency within 9 seconds of startup
• EPA registered and OBD2 compliant (1996 and newer vehicles); not legal in California
• TIG-welded 304 stainless steel, 1.5mm wall thickness
• Bolt-on, no cutting or welding required
• Made in Miami, Florida

PARTS INCLUDED

• 1x catted downpipe with GESI catalytic converter
• Turbo flange gasket (pre-installed in the downpipe flange)

TECH RESOURCES

• No performance tune is required to run this downpipe (per Active Autowerke). For more power, tuning options we stock: MHD Super License for Toyota Supra B58, JB4 Tuner for 2020–2026 Toyota Supra Mk5.
• Pairs with the Active Autowerke Supra Cat-Back Exhaust for a complete downpipe-back system, and the Active Autowerke B58 Charge Pipe.
• Catalytic converter break-in procedure — Active Cats / GESI catted variants (PDF)
• Active Autowerke publishes no installation guide for this downpipe; professional installation is recommended.
• Not legal for use on vehicles registered in California per California Vehicle Code Sections 27156 and 38391; meets EPA (not CARB) emissions standards.
• Covered by a 5-year/50,000-mile warranty on shell and tube ends and a 2-year/25,000-mile warranty on the catalytic core, to the original purchaser only. The warranty is void if the vehicle has excessive burble (greater than stock), as this physically destroys the catalytic core.
• Also available with an Active Aflow catalytic converter: Active Autowerke Signature Active Aflow Catted Downpipe – GR Supra (11-564A).

PART NUMBER

• 11-564

VEHICLE APPLICATIONS