How much horsepower does a HMF add?
HMF claims that the Competition Series slip-on exhaust ($289.95) adds between 4.8 and 5 horsepower to the KFX. Based on our experience, we would say that is very believable. With the power gains spread throughout the RPMs, we were able to ride faster without working any harder.
What does HMF exhaust stand for?
1997: HMF Engineering founded by Hans Luenger in Cleveland, Ohio. 1999: Hans hires three of his friends and buys building to support manufacturing process. 1999: Hans begins motorcycle racing to better understand the market and expands product line of sport and street motorcycle exhausts to better serve the sport.
How good is HMF exhaust?
If you are looking for a sound of greater power, HMF manufactures exhaust systems for all tastes. The construction of HMF products is of very good quality and their finish is beyond reproach.
What does a HMF Optimizer do?
The HMF Optimizer is an EFI Controller that has been programmed with the proper tuning specifications to ensure the ultimate performance from your HMF exhaust. The proper tuning will ensure the full performance potential from your HMF aftermarket high performance pipe and is necessary on all machines.
How much power does a Yamaha Raptor 700 exhaust add?
The Yamaha Raptor 700 exhaust is available as a Slip On or Full System in the Performance and Competition series. Slip on exhausts with tuning can pick up 4 hp and 3 ft-lbs of torque. Full exhaust systems combined with tuning and a modified intake see gains as much as 9 hp and 9 ft-lbs of torque to the rear wheels.
How much louder will the HMF exhaust be than the stock?
Sound levels will be 4-6 dB louder than the stock muffler at idle, but the inserts included with the Competition series, or adding the HMF Quiet Core Insert in the Performance series can decrease the sound output of the HMF exhaust. Fuel Tuning is absolutely required when installing an HMF Exhaust on this machine.
Do I need to tune the engine when installing an HMF?
Fuel Tuning is absolutely required when installing an HMF Exhaust on this machine. Failure to tune the engine can cause excessive damage to the exhaust system and engine, while voiding the warranty on your exhaust and possibly on your machine. (check with local dealer).
