The difference between a 2 ½” and 3” for the street is minimal as far as horsepower. I looked at Pypes last year at Carlise was not impressed. I bought my exhaust from Jeg’s. I will send pics if you want. Part number 555-30551 $175. or 555-30555 $195. for 3” and H-pipe kit 555-30651 or 555-30652 add $30

 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]On Behalf Of Jimmy C.
Sent: Monday, February 27, 2006 11:27 AM
To: Chevelle Forum
Subject: [Chevelle-list] Exhausts

 

I'm in the market for an exhaust system,I Have a mostly stock 454ci .60 over, mild cam with a street avenger 770 , stock open chamber oval heads ,super comp headers and would like to know if I should go with a 2.5"inch or 3" inch pipe. The  anyone has had any experiance with Pypes 3"inch crossover system with cut outs. looks like a nice system, but more expensive than Flowmasters.  Jimmy C.

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