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0.8mm thin stainless pipe reduces the price and weight (-34% of the stock exhaust system) at the same time. Occurrence of a torque valley around 4000rpm is suppressed so comfortable...
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HKS Hi-Power SPEC-L II for CUP Exhaust (2022 GR86/BRZ) Part #32016-AT130
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HKS Hi-Power Muffler WRX STI/WRX 2015 US