Post by
S13ChucKAT »
https://forums.nicoclub.com/s13chuckat-u16876.html
Mon Sep 06, 2004 11:47 am
Yup, time to get rid of that egr.. heheh..
No but he has a point.. now you have a bigger/better exhaust, and free flowing cat, there is almost NO backpressure, so there is reverse vaccum to make the egr open/operate..