which ones better for perfomance ??
which one sounds better ??

 

question:

why do you guys call it a test pipe instead of, say, a midpipe?

is there a difference?

 

Its called back pressure. Your prob going to need it

 

Im currently running 2.25" Piping, straight from my header, no cat, 18" resonator and some cheapie taiwan made can. It's not that loud, probably a little quieter then an Apex-i dunk. Thing puts out fumes though, because no cat.

 

test pipe is good for more HP but it does make the car burn oil.

test pipe is loud also

 

hah thats like saying my muffler causes my car to burn oil