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Old 08-09-2002, 10:27 AM
Randall Grubbs
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Michael,

Has anybody discussed or thought about doing headers and exhaust? For our 928's we have a complete system that adds around 40RWHP to the 4 valve models. I have seen the cars dynoed so I know its real. The headers are beautiful equal length jobbies with various tube sizes based upon displacement. The exhausts are single 3.5" and can be configured with or without high-flow cats and either 0, 1 or 2 high-flow mufflers. On a GTS just like mine with 2 cats and 2 exhausts the car put down 334RWHP with no other mods. Stock they're around 290-300. I know our engine bays are tight, but so is the 928. The cost installed is $3K and I know these guys are making some bucks. Headers are jet-hot coated and exhause is steel and they paint them with high temp paint.

I'm just wondering what exhaust alone will get us without headers.

Randy

Last edited by Randall Grubbs; 08-09-2002 at 11:02 AM.
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