Product DescriptionStage 2 Kit RB200 Real Tree RT200 212Improve the performance of your minibike with this kit.This simple bolt-on kit gives a noticeable power increase and that throaty off-road sound you want.No need to worry if your carb can be rejetted with the kit. The included Non-EPA style carb has easily changed main jets and additional tuning ability over the stock emissions carbs!Kit includes the followingHeader with gasketMini91 Slip-On Muffler with Stainless ClampAutoLite 3910x Racing Spark Plug.037″ Main JetBillet Air Filter AdapterK&N Style Air FilterChoke Hold Bracket and ScrewHeavy Filter Side Carb GasketNon-EPA style Carb with Gaskets8 Degree Offset Timing KeyThe air filter must be oiled to be effective. We recommend K&N Air Filter Oil available at most auto parts stores