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4D Amplifier
Eliminates long reaches to secure your sled
This is the same ignition used by top racers over the past 2 decades
5% Larger Exhaust Turbine
Designed with accessible air bleed valve for easy coolant installation
POWERBOMB TORQ SS CRF250R Category_Default Category/SLED/Yamaha/Mountain Max '20+ 4D AmplifierThe FMF Power Bomb is a four stroke header pipe unit that has a unique bulge precisely located in the header system. A "pre muffler" of sorts, the Power Bomb actually lowers sound output because it creates more surface area to absorb the sound medium (exhaust). The surface area of the perforated core lets the sound exit into the absorbing material (steel wool packing) and then allows the air to expand, cool and ramp back up with the higher pressure
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