Any before and after hp# using headers.
06-03-2003, 10:53 PM
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Any before and after hp# using headers. I have a 2000 SS m6 and want to add headers. I want to know what kind of dyno numbers to expect. Even a track number and mph will help. I have a Magaflow catback, a deck lid, fast joy ram air, and free mods. I will probably buy an LS6 cam in a week or two. 
06-04-2003, 09:55 PM
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Re: Any before and after hp# using headers. Dynoed ~307 without LT's, 331 with. My 1/4 mile times are not an indicator of what it'll do because I have a horrendous short time but I was trapping a best of 107.7 MPH.
