With this new 10 rib kit, flip drive and cog drive. I'm basically custom making everything. They claim it takes 4 hours to install. But the fastest anyone has done it is 30 hours. And that's cause he had all the parts. I'm missing parts and basically peicing together my own kit. 9/10 of everything I read about this kit is everyone else had to do the same thing. But everyone said it is 100% worth it. I will have zero belt slip and will have instant boost with less strain on my accessories.