what does HPD have thanks

 

have the new 2002 catalog right there,they offer POWER MAXX exhaust system,add 6 lbs of torque gains in the mid,with 4.5 hp gain on top,but they suggest a CLUTCH KIT as well for to match that exhaust setup.
they offer aggressive clutch kit too for the 500 h.o.,they offer a new
airbox wich add 2 hp,and some other clutchs parts.they only have the exhausts/clutchs kit for engine mods (mainly the catalog is about 2 stroke mods) so you didn't have so many choices as far improving your 500 performances...

 

thanks for the info man, i need some thing for low end butt dont want lose top end i just got a new 700 sp belt. ned more low end for my Vamps!!! a gain thanks for the info!!!!

 

just some more low end? i think you should get first a different clutch kit setup as you want and see what happen,a new good air filter maybe a good thing also...

 

how makes a good clutch kit there lots out there?