Replace Both cats after the turbo. For maximum exhaust flow and increased turbo spool up, HKS offers Off-Road down pipes and front pipes for race use. Each 75mm mandrel down pipe and front pipe is a bolt on application that will mount to the stock turbo. Stainless steel coated. Fits Turbo Subaru WRX. Retail: $199.00
I ordered a Tial blow off valve and it was at my door in only 3 days! The serial number checked out with TiAl as authentic. No one else had the color......
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Hands down, best supplier of parts ANYWHERE...PERIOD. Fast service and very knowledgeable staff helped our build and continues to be a resource when......
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