expectations from mods
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Joined: May 2007
Posts: 88
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expectations from mods
I have an 08 a6 with 273 gears npp exaust vararam and a tune. I would like to know what is the best headers to go with the npp exaust.i would also like to know what kind of horsepower gains i can expect with a ported fast and a set of headers. Thanks in advance.
Safety Car
Joined: Aug 2006
Posts: 4,206
Likes: 6
From: Makena, Maui & NM
You'll get all kinds of answers as to the "best" headers. I have Kooks. Almost all of them put out about the same hp which is about 25 hp on average. For a near stock car like yours, a ported Fast would add about 15 hp on average. 50% more with bolt-on cams.
Drifting
Joined: Apr 2008
Posts: 1,955
Likes: 22
From: Lehigh Valley Pennsylvania
30-35 whp, most major brands of headers will be within 5 hp of each other.
