For the ultimate in performance, consider an M4 full exhaust for your bike available from Riders Discount! Pictured here for the Yamaha R6, a full exhaust comes complete with all necessary mounting hardware. Not yet listed on our website, M4 exhausts can be ordered by calling MIKE at 866.931.6644 ext. 804 or by sending us a private message through this forum. Is email more convenient? Write to us at FORUM at RIDERSDISCOUNT dot COM, and we'll get back to you right away! Full systems come with numbered headpipes to make installation easy. These headpipes are carefully engineered featuring a tapered design of equal length to bring out the best performance. With reported gains of up to 8 horsepower using a tuned map, you'll feel the newfound horsepower as soon as you crack open the throttle. The mufflers look as good as they function. Producing an awesome sound that makes your bike stand out from the rest, these mufflers are available in carbon, stainless steel, or titanium as shown here. If you're interested in ordering a new exhaust for your bike before the season starts, give us a call or send us an email to order yours today!