exhaust size??? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

!Zar! · 02-05-2007, 01:25 PM

The biggest differences with back pressure is not the exhaust but the header design. Like a 4-1 or a 4-2-1.

The 4-2-1 would be best for our cars unless you have a huge turbo and only want highend.

THEN there is the downpipe. Which I haven't even see him mention. So it's still useless.

KA 3" exhaust before/after dyno
That thread has more information regarding the whole 2.25 vs 3 debate...

02-05-2007, 01:25 PM	#1
!Zar! Post Whore! Join Date: Nov 2004 Location: North Korea Posts: 14,579 Trader Rating: (27) Feedback Score: 27 reviews	The biggest differences with back pressure is not the exhaust but the header design. Like a 4-1 or a 4-2-1. The 4-2-1 would be best for our cars unless you have a huge turbo and only want highend. THEN there is the downpipe. Which I haven't even see him mention. So it's still useless. KA 3" exhaust before/after dyno That thread has more information regarding the whole 2.25 vs 3 debate... __________________