V10SpeedLuvr
Enthusiast
Well, being catless, mufflerless and Borla headers seems to have a bad side effect. It appears unburnt gasoline is coming out of my rear exhaust and "staining" my paint. The bottom of the bumper is turning black and is unable to be cleaned..instead of the **** being on the paint, it looks like its actually "in" the paint. Will adding a muffler take care of this or do I also need to go with HF cats as well? I really love the sound of the car now, but I dont want to have to repaint the back of the car every year either. I want the car to be loud and mean sounding so what options do I have to keep the Nascar-type loudness but also keep my rear bumper red instead of stained?