Installed the $100 SS magnaflow catback I got off craigs this morning. Fit great, 30 minutes in the driveway with ass of truck on ramps. Sounds wonderful, but does have the dreaded drone around 1800rpm. Of course that's at 70mph, where I'd have it for long road trips on the freeway. Very happy with it for the money ($650 new) but I'm not ready to get rid of stock exhaust yet. Reinstalled the sparks SS tip but without spacer and looks good.