exhaust pipe size

chevyrules05 · 04-11-2011, 05:25 PM

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

**Old Bones** · 03-10-2012, 06:35 AM

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

Kt.mp05 · 03-10-2012, 02:51 PM

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...

TheMuscleShark · 03-12-2012, 06:09 PM

Agree with the sentiments above. Get a high flow cat while you're already paying a guy to get under there.

**Old Bones** · 03-12-2012, 07:00 PM

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

**ekm1190** · 03-12-2012, 09:28 PM

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.

04-11-2011, 05:25 PM	#1 (permalink)
chevyrules05 Junior Member Join Date: Aug 2010 Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts	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

03-10-2012, 06:35 AM	#2 (permalink)
Old Bones Caprice Classic with Class Join Date: Jul 2011 Location: Port Coquitlam B.C. Canada Posts: 4,290 Thanks: 325 Thanked 371 Times in 216 Posts View My Garage Old Bones	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 __________________ People who drive slower than me are Assholes. People who drive faster than me are Crazy. 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.

03-12-2012, 07:00 PM	#5 (permalink)
Old Bones Caprice Classic with Class Join Date: Jul 2011 Location: Port Coquitlam B.C. Canada Posts: 4,290 Thanks: 325 Thanked 371 Times in 216 Posts View My Garage Old Bones	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 __________________ People who drive slower than me are Assholes. People who drive faster than me are Crazy. 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.

03-12-2012, 09:28 PM	#6 (permalink)
ekm1190 aka IMPALER Join Date: Dec 2009 Location: Kokomo, IN Posts: 2,953 Thanks: 16 Thanked 46 Times in 37 Posts View My Garage ekm1190	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. __________________ PLEASE LIKE Hoosier Impala & Caprice Club Check out my build thread:"Form = Function"

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03-10-2012, 02:51 PM	#3 (permalink)
Kt.mp05 Pedal to the Metal Join Date: Nov 2011 Location: Jacksonville, FL Posts: 206 Thanks: 0 Thanked 0 Times in 0 Posts	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...

03-12-2012, 06:09 PM	#4 (permalink)
TheMuscleShark Senior Member Join Date: Feb 2012 Posts: 242 Thanks: 0 Thanked 0 Times in 0 Posts	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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