Slip on

[wantinga400ex]

I'm just wondering, how much difference does a slip on exhaust make over the stock setup? And also compared to a full exhaust system?

Thanks

[400Riderex]

i have a mega max slip on on my 400ex and it makes it a hell of alot louder and bottom end is alot more powerful.

[Florida400EX]

my buddy has a Megamax and hotcams. The megamax is barely any louder than stock. My motor and everything is stock motorwise. But I outrun his. He is on 6 ply tires, and I'm on 2 ply.