Re: New! Direct Fit High Flow Metallic Substrate Cat Assembly w/ Flex Pipe for 2003-2
Most of the aftermarket cat-backs are designed to slip onto the existing cat outlet (2.5").
On the Gen2, only Corsa and B&B offer an option (with Corsa, you choose 2.5" or 3" inlet, B&B is 3"inlet with a reducer supplied).
Chances are, your Corsa is a 2.5" inlet with perhaps a 3" muffler behind it. In any event, a simple adapter, or cut off the 2.5" and weld a 3" stub will make the union. A local muffler shop could supply either quickly. We have the 3" to 2.5" adapters as well if you don't want to make your muffler inlet 3".
Regards,
Sean
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