I want to run 1.5 NSA RRs on my exhaust and already have 1.6 NSA pro mags on my car so Im looking for any trades out there. Using a split 1.5/1.6 setup works really well for those not wanting to push the limits of thier valvetrain.

 

hey brad, if those would work for a 98 z71 5.7 vortec i might be interested in buying them outright when you find some other rockers. just let me know.