was wondering what test pipes would fit on to my nismo exaust anyone out there with this combination???

 

all of them will fit so long as they work with the stock flanges, but the piping size may be off, plus the test pipes bolt to the y-pipe, then the y-pipe bolts to your nismo exh, you might want to replace your ypipe to get maximum benefits. btw nismo exh is 3.18? inch single pipe exh so you want to have test pipes with about the same size, jsut keep in mind that there are two test pipes so anything around 2.25" should flow well enough not to choke up the exh

 

any set.. as long as they are exact replacements...

i dont know of any that wont work yet...