Their actually about dead even. The yfz is bone stock, except for wheels & tires. The Predator has a Yosh exhaust & pro-design air filter set-up with a K&N filter. They both have about the same power, but the yfz comes on stronger at the bottom & signs off sooner. The Predator has mostly mid & top power & will pull the YFZ in 5th gear by quite a bit. The YFZ is mainly held back by it's lower gearing (factory). The Predator is a great cross country & trail quad. I like the YFZ's power better, but I always feel cramped on it on long rides.