Exhaust question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

str33tpr3p · 10-10-2013, 06:17 PM

Hey guys just a quick question about exhaust flanges. Do you guys know if a 2.75" flange will bolt up to a 3" flange?

Thanks!

Hashiriya415 · 10-10-2013, 06:47 PM

Yes, but will leak a little. But you could get the same size exhaust.

Rich260z · 10-10-2013, 06:48 PM

That depends on the bolt hole spacing, and even if they do align, the larger diameter pipe may not seal on the smaller diameter pipe.

Lastly you should always go from a smaller diameter to a larger diameter, not vice versa

str33tpr3p · 10-10-2013, 06:55 PM

Quote:

Originally Posted by Rich260z

That depends on the bolt hole spacing, and even if they do align, the larger diameter pipe may not seal on the smaller diameter pipe.

Lastly you should always go from a smaller diameter to a larger diameter, not vice versa

Guy has a 2.75" exhaust but wants me to make him axle back 3" .

10-10-2013, 06:17 PM	#1
str33tpr3p Leaky Injector Join Date: Apr 2012 Location: canada Posts: 56 Trader Rating: (0) Feedback Score: 0 reviews	Exhaust question Hey guys just a quick question about exhaust flanges. Do you guys know if a 2.75" flange will bolt up to a 3" flange? Thanks!

10-10-2013, 06:47 PM	#2
Hashiriya415 Zilvia FREAK! Join Date: Jun 2007 Location: San Francisco Age: 36 Posts: 1,007 Trader Rating: (22) Feedback Score: 22 reviews	Yes, but will leak a little. But you could get the same size exhaust.

10-10-2013, 06:48 PM	#3
Rich260z Zilvia Addict Join Date: Apr 2011 Location: Burbank, CA Posts: 621 Trader Rating: (8) Feedback Score: 8 reviews	That depends on the bolt hole spacing, and even if they do align, the larger diameter pipe may not seal on the smaller diameter pipe. Lastly you should always go from a smaller diameter to a larger diameter, not vice versa