Your pipes look MUCH better to me than the saito cast mufflers or the machined aluminum chunks from RCS. Very sleek looking, light weight and rpm gains, win win win. The brass one on that 150 is just awesome!
So I'm wondering about header length, specifically for peaking rpm with a given prop. Maybe using a two piece header pipe/muffler combo that slides in/out to increase/decrease header pipe length? Lengthen to increase lower end torque, shorter for higher rpm gain. Not say'n it would fix the fa82's problem with running a 14x6 above 9200 rpm but it may be worth a try?
Last edited by Glowgeek; 03-24-2019 at 06:13 AM.