Fellas I don't think he was saying the belts r the main problem.....useing the rubber belts helps...I have run all rubber belts an still have had a problem....I think the stiffness of the chassis is key...brace or engine mount...now how much does effect the car we don't know but u might have to alter your setup....the gear problem is killing mugens sells...I know Guy who wont touch it because of that...but after all the problems r done an there have been a few...its a good car...an a fast car