ZR-1 Net Registry Forums - View Single Post - Best Sounding Exhaust for the ZR-1

jonszr1 · 10-11-2007

you might want to try that xpipe muf/resonator . I went 3in to it and 21/2 after with spin tec mufflers /dual outlets. at the drag strip this was worth .15-.19 and almost 2 mph over the stk flowmaster setup

10-11-2007	#118
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: Best Sounding Exhaust for the ZR-1 you might want to try that xpipe muf/resonator . I went 3in to it and 21/2 after with spin tec mufflers /dual outlets. at the drag strip this was worth .15-.19 and almost 2 mph over the stk flowmaster setup