The ETS Evolution 8 and 9 Test Pipe is a direct replacement of the factory catalytic pipe. We are an industry leader in the Evo IX and IIIV and our test pipe is proven to make more power than any others on the market. This has been dyno tested for a 25whp increase over the factory catalytic pipe. Works with factory downpipe and factory exhaust system as well as any other aftermarket exhaust system that mounts in the factory location.
Full 3" Stainless Steel Construction Straight Through design No restriction 100% made in the USA