ISR Performance Rear Lower Control Arms - Scion FR-S / Subaru BRZ 13+

ISR Performance rear lower control arms for the Scion FR-S and Subaru BRZ replace the fixed factory lower arms with an adjustable set, giving the FT86 chassis control over rear camber once the car has been lowered or set up for track work. Lowering an FR-S or BRZ drives the rear camber negative with no stock provision for correcting it, and the rear lower arm is the right place to take that control back.

Benefits of an adjustable lower arm

• Bring rear camber into a usable range on a lowered car
• Tune rear grip against the front to adjust the handling balance
• Slow inner-edge rear tire wear on a daily-driven lowered car
• Replace the factory arms and bushings with a sturdier assembly

Fits

• Scion FR-S, 2013 and up
• Subaru BRZ, 2013 and up

Setup guidance

Install with the car on jack stands, match both arms to the same length, then torque the pivots with the suspension loaded at ride height. Changing lower arm length moves the bottom of the hub and will affect toe as well as camber, so an alignment is part of the job. Run them alongside ISR's adjustable rear trailing arms for the FR-S and BRZ when you want the whole rear suspension adjustable.

All ISR Performance products are designed for off-road use only.