Nissan 370Z Forum - View Single Post - [Equinox] Install: GTM 3" Cat-back Exhaust

Methodical4u · 08-28-2011, 11:06 PM

I often have wondered why companies choose not to make 3" exhausts all the time... I always thought that bigger meant it would breathe better... perhaps it has something to do with backpressure, but oh well.

08-28-2011, 11:06 PM	#33 (permalink)
Methodical4u A True Z Fanatic Join Date: Jun 2011 Location: Maryland Posts: 1,393 Drives: 11 370 6mt pw w/sp Rep Power: 17	I often have wondered why companies choose not to make 3" exhausts all the time... I always thought that bigger meant it would breathe better... perhaps it has something to do with backpressure, but oh well.