shift kit on ls1's

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#11

04-15-2009, 06:18 PM

evilkal

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Location: Kentucky

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LTs will definitely make it loud. Gutting the cat will make it MUCH louder or you can get a high flow if you need it for emissions testing.

#12

04-15-2009, 06:29 PM

2000blkz28

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Location: bay area california

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so gutting the the cat is to just take it out? or how does that work?

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