Question on OBX headers - ZR-1 Net Registry Forums

Shizap · 07-22-2021

I bought a set of OBX headers and on the passenger side header there is a pipe that sticks out. Does anyone know what this is for? Air system? I was just going to plug it, but wanted to see what you guys think.
Thanks,
Scott

efnfast · 07-22-2021

Smog air tube

HAWAIIZR-1 · 07-23-2021

The late model years (93-95) have an EGR valve and that is for the tube to connect to. If you have early model (90-92) with no EGR you can cap it off. If you have later model and you remove or do not use or need EGR you can cap it off.

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07-22-2021	#1
Shizap Join Date: Oct 2020 Location: Coweta, Georgia Posts: 53	Question on OBX headers I bought a set of OBX headers and on the passenger side header there is a pipe that sticks out. Does anyone know what this is for? Air system? I was just going to plug it, but wanted to see what you guys think. Thanks, Scott

07-22-2021	#2
efnfast Join Date: Nov 2011 Location: Dunbarton NH Posts: 7,486	Re: Question on OBX headers Smog air tube

07-23-2021	#3
HAWAIIZR-1 Join Date: May 2010 Location: Japan Posts: 3,582	Question on OBX headers The late model years (93-95) have an EGR valve and that is for the tube to connect to. If you have early model (90-92) with no EGR you can cap it off. If you have later model and you remove or do not use or need EGR you can cap it off. Sent from my iPhone using ZR-1 Net Registry __________________ Craig "ZR-1 NO KA 'OI" "ZR-1 ICHIBAN" 1995 #228 Black/Black with Dunn Heads ZR-1 owner since September 2003 ZR-1 Net Registry Founding Member #0074 NCM Lifetime Member #2048