YZ450F (10-13)

High Performance Motorcycle Exhausts, Street Bike Parts, Aftermarket Motorcycle Accessories, Exhaust Pipe, Race Exhaust Systems

Performance Specs
  Stock TBR Difference
Peak HP 49.9 hp 51.2 hp 1.3 hp
Peak Torque 34 34.1 ft-lbs -0.1 ft-lbs
Max HP Gain 49.48 3.5 @4500rpm +3.5
Max Torque Gain - 3.49 ft-lbs @5.000 rpm +1.8
Weight 7 lbs 6.5 lbs -0.5 lbs
Sound 97 db @4500rpm 100 db @4500rpm +3 db
with P1 insert - 99 db @4500 rpm -1 dB
with P1-X insert - 98 db @5000 rpm -2 dB
Catalyst no no -
O2 Sensor no no -