Exhaust Pipe Size - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

zz430camaro · 08-07-2017, 06:59 PM

What is the pipe diameter on a ZL1 Npp exhaust?

HOJO · 08-07-2017, 08:05 PM

What I found was 2.5 inches. The Z28 is 2.75 I believe

Can'tHave2MuchHP · 08-07-2017, 08:06 PM

The ZL1 has a 2.5" NPP system. Significant flow for modded cars. Once you're over 750-800 RWHP then I'd see about a 3" cat back.

08-07-2017, 06:59 PM	#1
zz430camaro Drives: 2015 1LE Join Date: Oct 2015 Location: Cleveland, OH Posts: 1,485	Exhaust Pipe Size What is the pipe diameter on a ZL1 Npp exhaust?

08-07-2017, 08:05 PM	#2
HOJO Drives: 2014 Camaro SS/RS 1LE 1967 Camaro Join Date: Oct 2013 Location: Fort Wayne, IN Posts: 874	What I found was 2.5 inches. The Z28 is 2.75 I believe

08-07-2017, 08:06 PM	#3
Can'tHave2MuchHP Drives: Fast Join Date: Mar 2015 Location: Michigan Posts: 3,696	The ZL1 has a 2.5" NPP system. Significant flow for modded cars. Once you're over 750-800 RWHP then I'd see about a 3" cat back.