what diameter tubing are ya'll running before the mufflers on your stock exhaust systems? is it 2.5" or do you have this tiny (expletive deleted) 1 7/8" (expletive deleted) that i'm lookin at ?

 

When my car was stock my exhaust was 2.25"..

 

Stock is 2.25 , 2 1/4 in

 

He doesnt have a mustang guys. But for the mustnags stock size is 2 1/4" pipes i thought all modulars were as even my 1999 f150 was. you sure its not 2 1/4"?

 

yeah i'm sure...i put on the flowmasters myself assuming it was 2.25.. i was WAY off...that was a pita i tell you what. i figured the average diameter was 1 7/8ths....smaller in places and larger in others...what a cluster (expletive deleted) that exhaust system is...

 

On a Crown Vic PI the Diameter was that small? Odd, I Would have though it was the same as a stock Mustang which is 2 1/4. You should have just replaced it all with something bigger.

 

hey thanks for rubbing it in..


and yeah i thought that the diameter would have been similar to the stangs since it is the same engine, but i was wrong...ordered flowmasters with a 2 1/4 intake and had but buy reducers with 1 7/8 intakes in order to fit em on there ...so now i am going to redo the whole thing. i was thinkin of lengthening the slp cat-back system and going with an slp x-pipe but now i have to rethink that whole situation anyway i'll crawl under it and take a look at the headers, see if they have a big enough opening to fit the xpipe, if not anyone know of anwhere that sells some shorty headers for these engines?