Less weight, more power, and better sound. Everything I wanted! What I didn’t want (or expect) was a reduction in right-side cornering clearance, a fact I learned when I took the RC390 back to the track. Adding rear ride height bought me a few more degrees of lean angle, but I still managed to grind through the lower connector pipe during a race weekend. Damn! I took the exhaust to my local welder for repair, and I also had him remove a 20mm-long section of tubing from just inboard the final bend so the whole mid-pipe and muffler assembly is tucked in closer to the swingarm.