• When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Re-use original exhaust tips with new 2 1/2 inch exhaust?

KidCoronet

Member
Local time
1:43 PM
Joined
May 17, 2020
Messages
23
Reaction score
12
Location
Lincoln, Nebraska
My old, original rusty exhaust got tossed during the rebuild and I'm ready to pull the trigger on new 2 1/2" exhaust, mufflers, etc. I noticed my original chrome exhaust tips are smaller in diameter than 2 1/2" and they originally tucked inside the old, stock 2 1/4" exhaust pipes. They're still in nice shape so I'd like to re-use them and also not thrilled about dropping another couple hundred bucks on new ones if I don't need to. The main concern is whether they'll restrict the flow that far back. The car is a 68 Coronet R/T with the original rectangular tips. Thanks for your opinions!
 
Recently did this - take that last pieces of pipe for each side and your tips to local muffler shop. They will expand one side or the other to make a good fit. I left them $20 so they could order a pizza for lunch... That small reduction in diameter should not make any difference that far back in the system - the exhaust gas temperature has cooled down and contracted quite a bit by then.
 
Recently did this - take that last pieces of pipe for each side and your tips to local muffler shop. They will expand one side or the other to make a good fit. I left them $20 so they could order a pizza for lunch... That small reduction in diameter should not make any difference that far back in the system - the exhaust gas temperature has cooled down and contracted quite a bit by then.
Thanks friend! Just what I needed know :thumbsup:
 
Better off with 2 1/4 tailpipes unless you are at high RPM all the time with a big cam and heads that will flow high cfm
 
It'll be a street car 95% of the time but I might get it out to the drag strip one day. So it won't be high rpm driven other than the usual street mischief. The motor is a .30 over 440 with a mild port job to the heads. Cam is a .510 lift hydraulic roller, Holley 750, TTI 1 3/4" headers. It just dyno'd at 448 HP with 498 lbs of torque. Are you saying 2 1/4 pipes would be better for bottom end?
 
1/4" smaller tips that far back will mean nothing!
Besides, factory Hemi cars used 2 1/2 headpipes, and full 2 1/4 tailpipes. Use your 2 1/2 system, and add the tips you want. Your 440 will never know.
Edit: just to be clear, I'd run the 2 1/2, if not 3". But then I'm running 2" headers and a 3 1/2" system on a small block.
 
Thanks for chiming in on this. I felt like 2 1/2" pipes would be a good fit for my combo and very happy no issues with the old tips! I'm planning on ordering the TTI exhaust system..probably with the H-Pipe.
 
Auto Transport Service
Back
Top