Slip-on or Full Exhaust System

so many choices and combo types its hard to find the right one.

Does the 06 WR need a new header? what slip on are you all running

Hey Aaron how ya been dude? Hows your head?

If I'm not mistaken the 03-06 WRs use the 03-05 YZ header.

With that said just a slip on would show huge gains. In last years e-start 450 shootout Dirtbike dynoed an 06 stock WR at 46 hp and jetted/airbox mod with a PC type 496 at 49.4.

Thats almost 4 hp with a slip on...a "quiet" slip on at that :censored:

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