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  1. For Sale/Trade
    I have a HMF Competition Full Exhaust System in Black (450sx or 505sx for sale. Still in unopened box. $400+shipping **********Email: [email protected] I hardly ever have time to get on the forums anymore************
  2. XC Dyno/Tuning
    Hi, i have recently bought a HMF full system for a 450xc stock. The user guide says to change the Stock pilot jet for a 45pilot jet, ive done this and it is better than with the hmf and stock jet, but It has lost that bottom torque at the low to mid rpms. I would like some advice on tuning the...
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