Shorty Headers
Melting Slicks
Joined: Mar 2006
Posts: 2,255
Likes: 3
From: Sugar Hill Georgia
I think the majority of folks that have them here had them put on as part of a Callaway "package". Most posts I've seen from folks on this forum regarding the shorties is that you'll see minimal gains, but I can't recall anyone ever putting a number to "minimal". I don't think I've ever seen a before/after dyno regarding shorties, maybe you can be the first?! 
Might have to call and ask Callaway.
Might have to call and ask Callaway.
Safety Car
Joined: Jan 2007
Posts: 4,332
Likes: 0
From: Kuwait
I think the majority of folks that have them here had them put on as part of a Callaway "package". Most posts I've seen from folks on this forum regarding the shorties is that you'll see minimal gains, but I can't recall anyone ever putting a number to "minimal". I don't think I've ever seen a before/after dyno regarding shorties, maybe you can be the first?!
Might have to call and ask Callaway.
Might have to call and ask Callaway.
Le Mans Master
Joined: Dec 2005
Posts: 6,993
Likes: 1
From: Vail, Arizona
I think I've read somewhere before they produce like 10 h.p. 
For what they cost, not too good h.p. per $. However, for those trying to keep their car legal and squeez every h.p. out, this may be the way to go.
For what they cost, not too good h.p. per $. However, for those trying to keep their car legal and squeez every h.p. out, this may be the way to go.
Race Director
Joined: Oct 2004
Posts: 10,516
Likes: 2
From: Virginia Bch VA
Cruise-In VI Veteran
Cruise-In VII Veteran
St. Jude Donor '06
Or less. My guess would be 5 RHWP. Long Tubes will get you 15.
Team Owner
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
Last edited by VET4LES; Aug 4, 2007 at 08:53 AM.
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Racer
Joined: Jan 2007
Posts: 410
Likes: 9
Callaway Shorty Headers
sorry to bring this topic up again but with the advent of the LS3 I would really like to see an actual dyno run with them in a 2008 A6...I can visualize a mildly modified/excellent driveability A6 using these with a Killer bee/vette air combo... throw in a stock LS7 cam for good measure....$ is high versus performance but your avoid changing the cat location and/or the rest of the exhaust...for about $2500 parts may get 425 rwhp!
