Brocks Yamaha R1 Sidewinder Exhaust 04-06

The Best of the Best Drag Race Exhaust System Available for Modern Sport Bikes. Uniquely constructed of an aerospace quality ultra-light weight stainless steel in a FOUR into TWO into ONE configuration for a smooth torque curve with a megaphone induced peak power punch! We have combined our knowledge gained over the years racing our hard launching StreetSmart Systems with a purpose built Race Megaphone. A removable 2 ¼ outlet Billet Aluminum/stainless steel/fiberglass constructed baffle is included. As usual, our oversize tube design (Tapered 1 ¾” primaries meet DUAL 2” secondary pipes which merge into a velocity enhanced 2 ¼” collector) complements the ram air efficiency of the R1. BIG engines and Nitrous bikes LOVE additional pipe volume. But, the tapered head pipes prevent lost bottom end power for a hard launch and maximum acceleration, even with a stock 1000 cc engine. The entire R1 4-2-1 Sidewinder system weight in race trim (no baffle) is a mere 7 ½ lbs….baffle installed is two lbs heavier with little or no decrease in performance. The system is spring mounted for easy removal in race maintenance situations which also makes oil filter replacement a breeze.