The HKS downpipe for the Evolution 8 & 9 features polished stainless steel construction with a 2.5 inch (65mm) pipe diameter. The smaller diameter allows the HKS downpipe to clear the factory lower chassis brace. Even though this HKS downpipe is not as large diameter as some of the other aftermarket pipes, your stock turboed Evo 8 & 9 will spool faster thanks to the smoother, freer flowing HKS design. The HKS downpipe for the Evo 8 & 9 bolts between the stock O2 housing and factory catalytic converter.
Part Number: 3306-SM002
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