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Old 04-11-2011, 05:25 PM   #1 (permalink)
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exhaust pipe size

I want to buy new mufflers does anyone know the intake and out take pipe size, i am going to get flowmaster 10s

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Old 03-10-2012, 06:35 AM   #2 (permalink)
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They come in 2.5 inch , 3 inch , 3.5 inch and 4 inch. You gotta choose what size of an exhaust system you want

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Old 03-10-2012, 02:51 PM   #3 (permalink)
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From the stock i think its 2.25. i bought super 44's and they where 2.5 and the muffler shop had to make an adopter from 2.25 too 2.5 fit then end of the flowmaster. Or the best thing is delete res. and running 2.5 piping all the way down to the new mufflers. i wish i had done that all at once. Had to go three different times...

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Old 03-12-2012, 06:09 PM   #4 (permalink)
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Agree with the sentiments above. Get a high flow cat while you're already paying a guy to get under there.

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Old 03-12-2012, 07:00 PM   #5 (permalink)
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Im going 2.5 all the way (duals)....headers / Dynaflow cats / Flowmaster 50s , go big all the way or regret it not too far the road

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1983 Caprice Classic.
350 CID. 330 HP. 380 Ft.Lbs. Torque. Turbo 350 Trans. with Cooler.
Headman Headers. Magnaflow Cats. Flowmaster Delta 50 Mufflers.
Electric Fan. Compu Star Alarm. Crazy Canuck behind the Wheel.


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Old 03-12-2012, 09:28 PM   #6 (permalink)
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Even if your pipe size isn't as big as the muffler, the shop installing it will have pipe size adjusters that they'll weld on to make it work.

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