Nissan 370Z Forum - View Single Post - Momentum header people! I have a quick question

DEpointfive0 · 08-21-2013, 10:42 AM

What's the inside diameter at the header to cat flange?

OEM DE is 2.25"

And some guy at Z1 said he THINKS theirs is 2.5" and that they made many improvements to the Momentum design, so I can't take his word

08-21-2013, 10:42 AM	#1 (permalink)
DEpointfive0 Premium Member Bitches Join Date: Jan 2012 Location: SoCal Posts: 14,824 Drives: a lot Rep Power: 17151	Momentum header people! I have a quick question What's the inside diameter at the header to cat flange? OEM DE is 2.25" And some guy at Z1 said he THINKS theirs is 2.5" and that they made many improvements to the Momentum design, so I can't take his word __________________ Do YOU want to know what/where I got my username from? ( Click to show/hide ) NSFW due to language: