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Are you designing your own WMI system for your supercharged or turbocharged racecar up to 40 PSI of boost
Rear Drums
AR2-HDSD kit features ACT's most popular Heavy Duty pressure plate
This controller is perfect for high compression naturally aspirated vehicles (NA) via the MAF/IDC settings and boosted vehicles using an external MAP sensor
Each K&N air filter is custom designed to fit into your existing factory air box
GrimmSpeed V2 Bypass Valve Red For Subaru 15-21 WRX (126033RED) 8005 Are you designing your ownThe days of sacrificing performance to leaky BPVs are over, because the long awaited GrimmSpeed Bypass Valves are here! The long awaited return of the GrimmSpeed Bypass Valves is here! Our valves have been a highly sought after product, but due to the intensive assembly process, it has been hard to keep them on the shelves, which in turn causes frustration among our customers. To address this issue, our team has worked diligently to Redesign the BPV