No experience with them, my living in California and NOT wanting to R&R non-cats every two years for emissions cert. but.... Have read a lot about the relative high quality of Motordyne ARTs from sound to strength (and a few with mentions to pairing with S-Tune catback.)

Just ran a google on this site for "cracked ART pipes" and found a LOT fewer instances of that occurrence than any other TPs.

Get what you pay for?

 

i believe after a few cracked ARTs Tony reinforced them. they still do crack though, might just take longer. the Nismo Y has even been known to crack stock cats! i dont know why, no one really knows why. best course of action is to get a different Y pipe and be happy. i just got a cheapo M2 y pipe, and its been a while and no problems. doesnt line up 100%, but it does the job. sad that a cheap piece works better than the Nismo.