Whiteline Rear Control Arm Lower Inner Bushing Scion FR-S 2013-2016 / Subaru BRZ 2013-2018 / WRX / STI 2008-2021 | W63428 vendor_Seibon BC valve springs are wound

BC valve springs are wound from only the highest grade

Intercooler Specifications:

It's important to note that all GrimmSpeed Staged Power Packages require a proper tune

Hawk HPS pads are designed primarily for a daily driven G37 but will hold up under light autocross duty as well

Reinforced silicone construction for durability

Whiteline Rear Control Arm Lower Inner Bushing Scion FR-S 2013-2016 / Subaru BRZ 2013-2018 / WRX / STI 2008-2021 | W63428 vendor_Seibon BC valve springs are woundPart #: W63428 Suffering uneven tyre wear, unbalanced braking or a less predictable rear end while cornering. It could be your control arm bushings have failed. Replace these worn parts with Whiteline synthetic elastomer bushings that offer long lasting durability for a safer more predictable vehicle.