My friend has been having trouble deciding on aftermarket parts for his 2002 Mojave. First he wants to put either a Supertrapp IDS2 or a white brothers exhaust on it(he wants to know which one is better). But before he wants to do that he wants to put a K&N power kit on it. He also wants to know what order he should put these things on(weather the power kit fisrt or the exhaust pipe and silencer). Then he wants to know if he will have to rejet the carb and if the k&n power kit will come with the nessesary jets??