Nissan 370Z Forum - View Single Post

Jordo! · 04-28-2015, 06:29 AM

Switching to a larger diameter Y pipe will create a very loud hiss.

Replacing OEM cats with unreasonated HFC's or TP's will result in farty rattle.

Both will be primarily on decel around 2.5 K or so RPM.

Only solution is to go OEM diameter Y (or Nismo OEM H), and resonated HFC/TP or LTH. Other than that its hit or miss to fix. Good luck...

04-28-2015, 06:29 AM	#17 (permalink)
Jordo! A True Z Fanatic Join Date: May 2010 Location: nirvana Posts: 6,394 Drives: 2023 NATM Rep Power: 418	Switching to a larger diameter Y pipe will create a very loud hiss. Replacing OEM cats with unreasonated HFC's or TP's will result in farty rattle. Both will be primarily on decel around 2.5 K or so RPM. Only solution is to go OEM diameter Y (or Nismo OEM H), and resonated HFC/TP or LTH. Other than that its hit or miss to fix. Good luck... __________________ Enjoy it. Destroy it. Last edited by Jordo!; 05-08-2015 at 08:57 PM.