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A stock exhaust with the baffles still in it should do the trick.
The stock exhaust diameter is 2 inches
A Yamaha Warrior has a horsepower of 350. The Yamaha Warrior is an off-road all terrain vehicle and has been around since the 1980s.
Stock 145
Mine will get up to 65 easy and its stock
89 gerbil power
30 mph stock...40 if you change the exhaust and bore it out
80hp@4400rpm 103ft-lb torque @3500rpm
A Yamaha warrrior is a good 4 wheeler mine all stock would go 59 to 65mph
2" diameter piping
18HP stock. The Raptor has around 23 because of better carb etc.
43mm stock. There was a size increase in the 1993 Model year.