Hey I have a 03 Blaster with Full FMF SST exhaust,K&N filter and Jets,and a 1dir racing rad valve.I know nothing special.I want to get a pair of ITP HD's and I was wondering if the 20,11,9's would fit on the stock rims?And i was also wondering what else I could do to get more power like low end and middle end.Besides getting like a 240 kit.I'm also getting my flywheel lightened bye 10 oz's is that to much??Thanks for the help