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Old 04-27-2011, 04:36 PM
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Silverback51 Silverback51 is offline
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Join Date: Jun 2007
Location: Covington, wa
Cobra Make, Engine: Superformance # 532, 466 BB, 560HP
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Quote:
Originally Posted by Jake View Post
The common complaint is the popcorn machine sound out of the stock pipes. I understand that someone did some dyno tests and with a big block there was a 75 HP difference between the stock and free flowing 3" inside diameter pipes. I had a friend weld in some stainless specialty mufflers in place of the stock mufflers and they sound amazing! Much cheaper, at about $ 119.00 each ( Stainless Steel exhaust components• ) All said and done I think I was less than $500 with fresh ceramic black coating.

Jake
I put mine on a dyno before and after the Stainless Specialties pipes, and there was only 1 HP difference.

Now with that said, I did not re-jet it after the new pipes, and it was on the lean side, but still acceptable.
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