GSC Power-Division Exhaust Valves 29mm (STD) Subaru WRX 2015-2021 (Set of 8) | 2281-8 FocusRS_2016-2018 Part Number: 7163 This item

Part Number: 7163 This item is non application specific

100% drop-in fitment

Part #: TS-NIS-001

14mm Bottom O-Ring

Improves tuning stability and power delivery

GSC Power-Division Exhaust Valves 29mm (STD) Subaru WRX 2015-2021 (Set of 8) | 2281-8 FocusRS_2016-2018 Part Number: 7163 This itemFitment Information: 2015 2021 Subaru WRX Specs: Stem Diameter: 5. 5mm Overall Length 97. 90mm Head Diameter: 29mm Features: When creating our new valve line we set out to create the best performance longest lasting valves available to the aftermarket. Using advanced 3D design and simulation programs we have created a stronger and higher flowing valve head design. We flow test prototype valve heads in the specific applications to make sure we have the