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 can't thank Himni enough for your awesome customer service and technical help. The turbo parts fit perfect. My new favorite turbo shop!
- Chris Y.......
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Oh my goodness! Fastest shipping I have ever experienced from the US! Many thanks
- James S. Ontario, Canada...
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