For those who want more from our Stage 1 implementation, we have an option called Stage 2, which is created by improving a number of parts around the engine. Primarily, these parts are the air filter and the exhaust. Many air filter systems are restricted to reduce engine intake noise. By installing a sports filter or a special intake system, we help more air enter the engine and we get a nice power increase. The same is true for the exhaust system. In our Stage 2 application, we still maintain the manufacturer's safety standards, but in some cases we may need a few extra reinforced parts (eg clutch system, dump valve, etc.). Recommended parts must be replaced at every stage.