Ok so i'm sure there has been a lot on this but I can't seem to find what im looking for. So here it goes Do you really see a big difference in gains running a full system vs a slip on. Who makes a decent high mount or gp style for a fair price. and where can you even buy the racefit? I'm leaning towards the leo vince high mount slip on but I can't find any sound clips! Picks of different setups would be great!