Hitting the starter button made it all worthwhile. The S1000RR sounds brutal, the growl at idle rattling your chest! The Evo is a race pipe and it's pretty honkin' loud, so the Beemer will be restricted to the racetrack from now on. We put the bike on the dyno at Moons Supercycle (www.moonssupercycle.com) in Milwaukee for a shakedown. Before the install the beast put 184 horsepower (!) to the rear wheel, and post-op it had gained 8 bhp of midrange grunt and 2 bhp at peak. That's no night-and-day difference, but it's a bigger improvement than we'd expected to achieve. In addition to the power gains, the titanium Evolution pipe dropped a full 17 lbs., and the supplied Power Commander map really cleaned up the power curve. The Auto Tune should allow me to fine-tune things at the racetrack by allowing me to input specific target fuel-air ratios.