Full System Vs. Slip-On

[450rRider1105]

How big of a difference is the full system and the slipon. I've heard there isnt that muc of a difference. Please give me some details. Thanks:D

[brainwashed]

I did alot of asking around of local bike and quad racers.

They said that with a stock motor the slip on is fine.

If you going higher comp piston or get hotter cams the header helps, but with a stock motor they said to save the money and put it into wider a-arms.