Yoshimura 390 DUKE 17-20/RC390 17-20 ALPHA T Stainless Slip-On Exhaust, W/ Stainless MufflerYoshimura 390 DUKE 17 20 RC390 17 20 ALPHA T Stainless Slip On Exhaust, W Stainless Muffler Yoshimura is excited to introduce the Alpha T slip on for the KTM 390 Duke and RC390. Both of these fun machines are a blast to ride, now Yoshimura helps the 390 pack a punch and look even better. Our new Works Finish Alpha T slip on adds the distinctive Yoshimura sound and provides the 390 single cylinder engine 11% peak H. P. and 17% peak torque. Can you say