sorry guys ima newbe. can i put smaller pulleys without adding a stage kit, or do i need the stage kit first???

 

You can find alot about the subject by searching but to start off you can put a pulley on with out a "stage kit" a stage kit consist of pulley, injectors, smaller belt and tune. You can go with a 3" pulley and colder plugs without injectors and a tune, anything smaller you will need injectors and tune for it tor un correctly.

 

I ran a 3.2" for awhile. Def do supporting mods first. Exhaust/CAI

 

Like Shortbus said, a "Stage Kit" combines all the necessary parts that you need to drop down in pulley sizes. You could buy all the parts you need individually and get tuned, so you don't have to get a Stage Kit.