Everybody that rides quads today has a has at least a slip on exaust on there bikes. What's not to like, it sounds good and opens up more power. I know you guys might be arguing all day and night bout this topic but what is the ultimate quad exaust. This uncludes the 4 and 2 stroke pipes. What makes the best power / what sounds the best. In my experience FMF makes the most power and White Bros sounds the best.