Quote:
Originally Posted by Tru2Chevy
the "test pipe" is just a pipe that's the same length as the cat that you can install in your exhaust when you remove the cats. Allows you to make more power, but still bolt in the cats to be legal when you want.
- Justin
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oh ok i understand now so i dont have to buy one the guy at the shop should be able to just put one in tx alot