Im running flowmasters and 3in to rear then 2.5 over then back to 3in out to the end, sound great run even better. good luck Eddie 66SS454 convertable. 

Ron Zeppin <[EMAIL PROTECTED]> wrote:
I have 3" going back to a pair of series 40 Flowmasters then 2.5" all
the way out the back.
I haven't taken it down the strip yet, but I've got a moderately healthy
400 small block in my
'68 and would imagine I could drop a pretty healthy big block in it with
the same exaust with no worries.

Ron

[EMAIL PROTECTED] wrote:

>Jimmy,
> You could use either 2.5 or 3". As far as performance both will
>get the job done for your combo. I went 11's with cheap 2.5"
>mufflers. So the true decisions are based on $$$ available. I would
>tend to lean toward 3" and try to get it in stainless. Mandrel bent
>pipes are a must. Many kits are available that fit right in the
>factory locations. My Borla setup has 2.75" tailpipes and utilize the
>factory mounting points. I like Flowmaster but have heard very good
>things about Pypes.
>
>$.02
>Walt
>http://www.personal.kent.edu/~wbainey/CHEVELLE.htm
>http://www.personal.kent.edu/~wbainey/BORLA.htm
>
>----- Original Message -----
>From: "Jimmy C." <[EMAIL PROTECTED]>
>Date: Monday, February 27, 2006 11:27 am
>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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