I noticed on the Moriwaki exhausts the Ti hand bent has a bigger radius bend coming off the head vs the stainless machine bent set. They claim a bit more hp and torque from the hand built also.
increase of 20% over 83(stk per the tbr chart?) hp would be 100hp. Haven't seen that anywhere yet.
Stock closer to 79/80. Increase @ 90* temps 16-17%. "About"
Back in the day, Pops Yosh hand-bent the pipes, and today are very rare and desirable. Made for hi-rpm w/o restrictions for noise. Beautiful sexy curves. Unique sound.