SEIBON Dry Carbon Roof Replacement For 2015-2021 Subaru WRX/STI ) Then the heads are

) Then the heads are fixtured in our Newen Valve Guide and Seat Machine to cut all intake and exhaust seats with a multi-angle valve job that suits the flow characteristics of GSC's standard size 36mm Intake and 32mm Exhaust valves

steady state cruising

(2) Stainless steel braided leader lines

180" Chromoly Pins

and will create more power and torque across the entire RPM range

SEIBON Dry Carbon Roof Replacement For 2015-2021 Subaru WRX/STI ) Then the heads areSeibon Carbon components are carefully hand crafted using only the finest materials. Our production team offers superior craftsmanship with over 20 years of experience working with carbon fiber. Every component is constructed with a consistent weave pattern. Our production processes allows exceptional carbon resin ratio, creating high product stiffness that also leads to extra strength. We meticulously inspect all of our components and stand firmly