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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


Exhaust opinion

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thatfnthing
Joe73
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G3GM :: G3 Tech :: Engine & Driveline

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Post by Dead Man Fri Sep 14, 2012 12:41 am

About to go ahead and put a new exhaust on my 350 chevelle, it will have headers, 3 inch pipe with x pipe back to some 2 chamber flo pro v force mufflers. im wanting something that is gonna be nice and deep. im not wanting it to sound poppy at all. has anyone dealt with these mufflers or a similar setup, I would really hate to do this and it sound like crap lol. thanks in advance.
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Post by Joe73 Fri Sep 14, 2012 7:48 am

I'd look into that exhaust in 2.5". 3" is for 500 hp and up and you'll lose some bottom end because you push your power band up when you decrease back pressure. Unless your doing it for looks. 2.5" is even a little big for the hp most guys are running.
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Post by thatfnthing Fri Sep 14, 2012 9:29 am

x2. Read a Car Craft comparison a while back between 2.5" and 3", and you are essentially wasting your money with 3".
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Post by Dead Man Fri Sep 14, 2012 10:00 am

thanks guys, in that case until I swap to my built big block I will stay with 2.5
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Post by 77mali Fri Sep 14, 2012 6:45 pm

thatfnthing wrote:x2. Read a Car Craft comparison a while back between 2.5" and 3", and you are essentially wasting your money with 3".

I read this also & agree 2" or 2.5" is enough (but that doesn't mean you can't have a 3" tail pipe if U want one LOL) :-)
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Post by Jim_Rockford Mon Oct 22, 2012 6:31 pm

3 inch for a single exhaust, and 2 1/2 for duals, I wouldn't waste my time with any 2 inch exhaust pipe.
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Post by Brainstain Mon Oct 22, 2012 9:12 pm

But, if you're going with a built big block in the near future there is no sense running the exhaust twice.. But if you're dead set on it, I have a complete 2.5" system that came off my Laguna if you're close and would be interested?

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Post by Dead Man Mon Oct 22, 2012 9:27 pm

im in alabama lol, but ive decided to just run what i have until the motor swap
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