Nissan 370Z Forum - View Single Post

Fhjkalfhu · 01-09-2018, 09:50 AM

Thanks. I understand the importance of exhaust velocity and all that good stuff. I’m just asking if bolting a 2.5” outlet cat to a 2.25” y-pipe is bad.

01-09-2018, 09:50 AM	#3 (permalink)
Fhjkalfhu Base Member Join Date: Feb 2017 Location: Somewhere Posts: 114 Drives: 2009 base white 7AT Rep Power: 8	Thanks. I understand the importance of exhaust velocity and all that good stuff. I’m just asking if bolting a 2.5” outlet cat to a 2.25” y-pipe is bad.