I have a hole in my 08 G35X Sport's Y-pipe and while the noise isn't too bad now I need to line up a replacement cat-back exhaust
system. KyDOT believes in dumping salt everywhere as soon as one snowflake falls so my entire exhaust is rusted and I would rather replace from the cats back than replace parts piece-meal as they rust out.
Has anyone put on a Invidia Q300 cat-back? I'm not looking for more noise.

https://conceptzperformance.com/invi...g3s_p_8801.php

 

So I went with the Megan Racing Y-Pipe. Bolted right up to the existing exhaust. Quiet until I get on the throttle and then a nice little growl. I'll replace the rest of the OEM exhaust when it rusts out with the axle-back Megan Racing exhaust or buy the Invidia Q300 system and sell the Megan Racing Y-Pipe.