SPL Parts Front Lower Control Arms - Toyota GR Supra (A90/A91) & BMW Z4 (G29)

OVERVIEW

SPL Parts Front Lower Control Arms (FLCA) provide roll center, camber, and track width adjustment for the B58-powered Toyota GR Supra and BMW Z4. Full articulation and zero deflection come from low-friction Teflon-lined FK spherical bearings, replacing the compliant factory rubber bushings so front geometry stays exactly where you set it under load.

Multiple stainless steel roll center spacers let you correct roll center geometry on a lowered car — one of the most significant handling gains available on this chassis.

SPECS

• Roll center, camber, and track width adjustment
• Lightweight 6061-T6 billet aluminum with titanium hardware
• Electroless nickel plated 4130 chromoly double adjuster for quick adjustment
• Correct ball joint angle for full articulation
• Rotating clamp design allows easy access to lock down alignment settings
• Low-friction 3-piece Teflon-lined FK sphericals and heim joints / rod ends
• Multiple stainless steel roll center spacers for precise adjustment
• Sold as a pair; made in the USA

PARTS INCLUDED

• 2x SPL front lower control arms with FK spherical bearings
• Stainless steel roll center spacers
• Titanium hardware

TECH RESOURCES

• Before purchasing — sway bar clearance: on the 2020 Supra and 2019 Z4 the sway bar sits very close to the lower control arm from the factory, and this arm does not change that. If you have aftermarket sway bars or aftermarket caster adjustment, check clearance to the lower control arm before driving. Contact between the arm and the sway bar can damage the arm and put undue force on the bearing
• Clearance solutions: SPL's Caster Rod Bushings (CRB G29) and Front Endlinks (FE G29) can create the necessary space for both arms to move freely
• A professional wheel alignment is required after installation
• Pairs with our Tie Rod Ends (TRE G29)
• Spherical bearings transmit more noise and vibration than rubber bushings — expected on a performance component
• Installation instructions (PDF): SPL FLCA G29 Install Guide

PART NUMBER

• SPL FLCA G29

VEHICLE APPLICATIONS