Hmf Yamaha Yfz 450 2004 - 2011 Brushed/polished Slip On Exhaust Muffler + Jet Kn on 2040-parts.com

Make: Yamaha
Model: YFZ450
Submodel:
Years: 2004-2011
Series: Performance
System: Slip On
Shape: Elliptical
Mount: Side
Color: Brushed Aluminum
End Cap: Euro - Elliptical-Horizontal - Polished

RE-JETTING REQUIRED

Performance Series

• The Performance Series uses a 2 1/8" non-restrictive core for maximum flow.
• Depending on the model, you can expect a 4-6 dB increase over stock.
• The exhaust shell is made of T6061 Aluminum that weighs substantially less than stock.
• USFS Approved: All HMF offroad exhausts come with a USFS approved spark arrester.
• Two Year Warranty: HMF Engineering Inc. warranties all exhaust systems for two years from the date of purchase for all manufacturing defects.

New HMF Factory Jet Kit for your Yamaha YFZ450 2004-2011 using an HMF exhaust.

RPO sells the HMF Jet Kit to work with HMF exhausts. When HMF designs an exhaust, they do several dyno runs with various jets and the jets that provide the best air/fuel ratio are added to the jet kit. Baseline is the manufacturers recommended jetting and smaller and larger jets included to accomodate changes in altitude or humidity.

This HMF Factory Jet Kit Includes: 2004-2010 - Individual Keihin Hex Jets: 165, 170, 175, 180 and 48 Pilot

Bikes must be jetted for valid exhaust warranties.

New K&N Air Filter for a Yamaha YFZ450 2004-2011.

• High Air Flow with Excellent Filtration.
• Designed to Increase Horsepower and Acceleration.
• Washable and Reusable.
• Will NOT Void Vehicle Warranty.
• K&N Million Mile Limited Warranty®.
• Economical, a K&N Air Filter Will Last the Life of Your Bike.
• Works with Original Equipment Manufacturer Vehicle Electronics.
• Easy High Performance Add-on.

*Hardware may be different than pictured.

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