I know the LS4 trans in complete crap (basically a v6 trans). But Im curious to see if anyone has built or modded any of those cars? Just saw a GXP today that sounded pretty mean, which made me think of this.
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Yeah there are quite a few with cams and there was a company making headers for them at one time, there is also a company that makes a turbo kit for them, still the trans is the weak link and takes lots of money to make it handle decent power
I went threw a couple built ones with my 04 the longest a built trans lasted was 2000 miles lol
If GM was thinking, put in a strong trans, and made them RWD those cars would be legendary.