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The Dynomax kit includes a Y-pipe, which works great if you have a single-catalyst exhaust system. Our dual setup required cutting of the Y-pipe to connect the headers to the cats. Dan Ryder cut the Y-pipe and factory cat pipe, leaving extra room until he could get the exhaust components back on the car to more closely approximate the needed lengths.
Dynomax Headers - Breathing Exercise

 The Dynomax kit includes a Y-pipe, which works great if you have a single-catalyst exhaust system. Our dual setup required cutting of the Y-pipe to connect the headers to the cats. Dan Ryder cut the Y-pipe and factory cat pipe, leaving extra room until he could get the exhaust components back on the car to more closely approximate the needed lengths.  View Related Article

 

 

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