Perrin Subaru Pulley Cover - 15-21 Subaru WRX FA20DIT - Red - PSP-ENG-152RD Blow Off Valve Adapter Carefully chosen spring rates help

Carefully chosen spring rates help distribute weight more optimally when launching for improved sixty-foots and quarter-mile times

The properties of this unique fabric structure create a lightweight fabric that performs like Nomex® yet is much more cost effective

The COBB 20G is an ideal turbo upgrade for those looking to increase the top-end power of their STI while maintaining low and mid-range response

Rear Spring Rate (Tender / Main): 112 lb

Torque Capacity (ft/lbs): 700

Perrin Subaru Pulley Cover - 15-21 Subaru WRX FA20DIT - Red - PSP-ENG-152RD Blow Off Valve Adapter Carefully chosen spring rates helpAccessorize the top of your engine and the pulleys with the PERRIN Belt Cover. Choose Red, Black, Neon Yellow, or Hyper Pink to accent your engine bay. NOTE: * This is for use on cars with upgraded TMIC FMICs only. If your car does not have an upgraded intercooler, use PSP ENG 165 Perrin 15+ Subaru WRX Pulley Cover For FA DIT Engines Fitment: Subaru WRX 2015+, 2015: Subaru: WRX: Base, 2015: Subaru: WRX: Limited, 2015: Subaru: WRX: Premium, 2016: