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what is the size of the stock piping on an 2003 dodge neon sxt? thanks

exhaust piping im assuming our talking about...its 2.5 inches

woah woah woah...2.5"? i dont think so...if anything you have stock piping on there it's going to be at most 2 1/4"...which is funny because everyone ran around saying it was 2 1/4 when really my exhaust was 2"

The largest pipe you'd want to PUT ON would be 2.5", right now you're prolly at 2 1/4

thanks, im getting a header and such and im trying to find out the best way to do with with my vibrant muffler. the inlet on that is the stock so itd be 2 1/4 and i was hoping to have a 2.5 in header. whats the best way to run this?

if the header outlet is 2.5" you could get a header collector that goes from the 2.5 to 2.25" and weld everything up.

is there anyway to have a high flow cat with a long tube header? i need one for emmisions but im not sure if theres enough room to fit on in there

Yep i have one.

sweet thanks. is the fit tight? i dont want to order the mpx long tubes and not be able to use em

i had a magnaflow cat on mine with an afx lth...it's just a tad more cutting and welding than if you were going to bolt it straight up to the header.

I have a Fast fabs LTH w/ a magnaflow high flow cat also....everything fits just fine.

2.25 inches is the stock pipe diameter. base neons have the same sized piping, but no resonators, on base models the piping drops to 2 inches where the axle-back attaches.. the rt's and sxts do not have this and are 2.25 all the way.(and have a resonator)