Originally Posted by rcompart
You're running a 181 and the SL airboxes though. Us guys running a 185 and dual NW intakes are seeing more boost and even higher AFRs above ~5500RPM.
SL55 boxes are flowing just about the same as NW intake plus I have a Highflow exhaust with about zero restriction. If you don't think it works don't use it. SLK32 runs stacked and NW Intake how come it worked for him??