Wow some good info their peter. What program were you using with the owner of the LS1, to measur your 1/4 mile 0-60 etc? (and what is the guys name on LS1.com I might know him) and if this is only $60 I think that i might get just to get an idea of what my car can do.
I have to addmit that after you started talking about removing that funnel on your car I did the same thing. LOL and I did notice a little gain on the top end.
The GTZ that you raced. was it a 99 or 2000? just wondering. and I am assuming that he was all stock
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