Slip on or full exhaust

Got an 09 YZ450F and already have the exhaust bug, it seems that Dr D is the way to go, so should I get the full exhaust or a slip on and any other exhaust out there, and while Im at it what should I change my jetting to running the stock exhaust.




Dave at mrd racing makes a killer exhaust.. Around 400 bucks u can get a complete custom exhaust that has a lifetime warrenty..

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