Hello, I have. 97 trans am lt1 with cat back exhaust with magnaflow muffler, I want it louder but don't want to put dumb o2's in and cut the cats off. I want to do an off road y pipe, maybe 3 in, or 3.5in y pipe, just wondering what would sound decent and be loud
Thanks!
K, in mn we don't have that shit ether, but I have heard the 96 and 97 lt1's can throw codes having no cats. But there is a trick by using o2 non fowlers
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