my mom is going to try to buy me a bigger quad before her unemployment runs out. there is a 2006 Yamaha YFZ450 Special Edition about an hour from me for 2200 and then there is a 2004 Yamaha Raptor 660R Special Edition about 30-45 mins from me for 2100. neither one of them has anything wrong with them. the YFZ has Curtis Sparks full exhaust system, K&N air filter, no airbox lid, and it's jetted. the Raptor has HMF exhaust, jetted, and K&N air filter.