Nearly New RPI Exhaust for sale for Z4M, deep throaty sound and awesome look (see video link below). In perfect condition; used only 10 days, less than 500 miles. I like them and would likely keep them if I only used on the weekends, but a bit too loud for my use as a daily driver. $965 new. Asking $800 plus shipping (estimate $55-$60, depending on location in US).