Thread: GM performance headers and exhaust: what kind of performance increase?
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Old 05-13-2009, 12:04 AM   #12
davidj
 
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Quote:
Originally Posted by Shocker View Post
shorties suck, put them on my GTO... lets just say as soon as I had the cash I went Long Tubes ASAP!!!
What was the difference between the two? Do you have dyno numbers?
Thanks.
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