COVID-19 Update 

RPO Powersports will ship In-Stock items, but may see a 1-2 Day delay.
Out of Stock Items will see various delays based on the manufacturer.

Possible Delays
In Stock: 1-2 Days || Out of Stock: 5-30 Days

HMF Engineering

HMF Engineering is a leading manufacturer of performance exhaust systems, electronic fuel controllers, and off-road defense equipment. A leading name brand in the off-road industry, HMF's line of performance products are built for maximum performance and durability.

select your vehicle:

Yamaha – Kodiak 400 (2000-2006)
Basic Jet Kit
by HMF Engineering

  • Re-jetting will provide the best air/fuel ratio after installing an HMF exhaust.
  • OEM jets. Keihin jets for Keihin carburetors and Mikuni jets for Mikuni carburetors.
  • Baseline jetting as well as smaller and larger jets included to accommodate changes in altitude or humidity.
Expected Delivery Date: September 21st - 24th

$25.46 $29.95

Add to cart

Yamaha – Kodiak 450 (2003-2006)
Basic Jet Kit
by HMF Engineering

  • Re-jetting will provide the best air/fuel ratio after installing an HMF exhaust.
  • OEM jets. Keihin jets for Keihin carburetors and Mikuni jets for Mikuni carburetors.
  • Baseline jetting as well as smaller and larger jets included to accommodate changes in altitude or humidity.
Expected Delivery Date: September 21st - 24th

$25.46 $29.95

Add to cart

Yamaha – Raptor 125 (2011-2014)
Basic Jet Kit
by HMF Engineering

  • Re-jetting will provide the best air/fuel ratio after installing an HMF exhaust.
  • OEM jets. Keihin jets for Keihin carburetors and Mikuni jets for Mikuni carburetors.
  • Baseline jetting as well as smaller and larger jets included to accommodate changes in altitude or humidity.
Expected Delivery Date: September 21st - 24th

$25.46 $29.95

Add to cart

Yamaha – Raptor 250 (2008-2014)
Basic Jet Kit
by HMF Engineering

  • Re-jetting will provide the best air/fuel ratio after installing an HMF exhaust.
  • OEM jets. Keihin jets for Keihin carburetors and Mikuni jets for Mikuni carburetors.
  • Baseline jetting as well as smaller and larger jets included to accommodate changes in altitude or humidity.
Expected Delivery Date: September 21st - 24th

$29.71 $34.95

Add to cart

Yamaha – Raptor 660R (2001-2005)
Basic Jet Kit
by HMF Engineering

  • Re-jetting will provide the best air/fuel ratio after installing an HMF exhaust.
  • OEM jets. Keihin jets for Keihin carburetors and Mikuni jets for Mikuni carburetors.
  • Baseline jetting as well as smaller and larger jets included to accommodate changes in altitude or humidity.
Expected Delivery Date: September 21st - 24th

$33.96 $39.95

Add to cart

Yamaha – Rhino 660 (2004-2007)
Basic Jet Kit
by HMF Engineering

  • Re-jetting will provide the best air/fuel ratio after installing an HMF exhaust.
  • OEM jets. Keihin jets for Keihin carburetors and Mikuni jets for Mikuni carburetors.
  • Baseline jetting as well as smaller and larger jets included to accommodate changes in altitude or humidity.
Expected Delivery Date: September 21st - 24th

$33.96 $39.95

Add to cart

Yamaha – Warrior 350 (1987-2004)
Basic Jet Kit
by HMF Engineering

  • Re-jetting will provide the best air/fuel ratio after installing an HMF exhaust.
  • OEM jets. Keihin jets for Keihin carburetors and Mikuni jets for Mikuni carburetors.
  • Baseline jetting as well as smaller and larger jets included to accommodate changes in altitude or humidity.
Expected Delivery Date: September 21st - 24th

$25.46 $29.95

Add to cart

Yamaha – Wolverine 350 (1994-2009)
Basic Jet Kit
by HMF Engineering

  • Re-jetting will provide the best air/fuel ratio after installing an HMF exhaust.
  • OEM jets. Keihin jets for Keihin carburetors and Mikuni jets for Mikuni carburetors.
  • Baseline jetting as well as smaller and larger jets included to accommodate changes in altitude or humidity.
Expected Delivery Date: September 21st - 24th

$25.46 $29.95

Add to cart

Yamaha – Wolverine 450 (2006-2010)
Basic Jet Kit
by HMF Engineering

  • Re-jetting will provide the best air/fuel ratio after installing an HMF exhaust.
  • OEM jets. Keihin jets for Keihin carburetors and Mikuni jets for Mikuni carburetors.
  • Baseline jetting as well as smaller and larger jets included to accommodate changes in altitude or humidity.
Expected Delivery Date: September 21st - 24th

$25.46 $29.95

Add to cart

Yamaha – YFZ450 (2004-2009)
Basic Jet Kit
by HMF Engineering

  • Re-jetting will provide the best air/fuel ratio after installing an HMF exhaust.
  • OEM jets. Keihin jets for Keihin carburetors and Mikuni jets for Mikuni carburetors.
  • Baseline jetting as well as smaller and larger jets included to accommodate changes in altitude or humidity.
Expected Delivery Date: September 21st - 24th

$33.96 $39.95

Add to cart

Yamaha – YFZ450 (2012-2013)
Basic Jet Kit
by HMF Engineering

  • Re-jetting will provide the best air/fuel ratio after installing an HMF exhaust.
  • OEM jets. Keihin jets for Keihin carburetors and Mikuni jets for Mikuni carburetors.
  • Baseline jetting as well as smaller and larger jets included to accommodate changes in altitude or humidity.
Expected Delivery Date: September 21st - 24th

$25.46 $29.95

Add to cart

Yamaha – Raptor 125 (2008-2013)
Black Headlight Light Blocks
by HMF Engineering

  • Made from T6061 Aluminum
  • Install easily into stock mounting location
  • Protects all exposed wiring after tail light removal
  • Made in the U.S.A.
Expected Delivery Date: September 21st - 24th

$46.71 $54.95

Add to cart

Yamaha – Raptor 250 (2008-2013)
Black Headlight Light Blocks
by HMF Engineering

  • Made from T6061 Aluminum
  • Install easily into stock mounting location
  • Protects all exposed wiring after tail light removal
  • Made in the U.S.A.
Expected Delivery Date: September 21st - 24th

$46.71 $54.95

Add to cart

Yamaha – YFZ450 (2004-2013)
Black Headlight Light Blocks
by HMF Engineering

  • Made from T6061 Aluminum
  • Install easily into stock mounting location
  • Protects all exposed wiring after tail light removal
  • Made in the U.S.A.
Expected Delivery Date: October 30th - November 04th

$46.71 $54.95

Add to cart

Yamaha – YFZ450R/X (2009-2019)
Black Headlight Light Blocks
by HMF Engineering

  • Made from T6061 Aluminum
  • Install easily into stock mounting location
  • Protects all exposed wiring after tail light removal
  • Made in the U.S.A.
Expected Delivery Date: September 21st - 24th

$46.71 $54.95

Add to cart

Yamaha – YFZ450R/X (2009-2019)
Black Taillight Light Blocks
by HMF Engineering

  • Made from T6061 Aluminum
  • Install easily into stock mounting location
  • Protects all exposed wiring after tail light removal
  • Made in the U.S.A.
Expected Delivery Date: September 21st - 24th

$66.26 $77.95

Add to cart

Yamaha – Raptor 125 (2008-2013)
Brushed Aluminum Headlight Light Blocks
by HMF Engineering

  • Made from T6061 Aluminum
  • Install easily into stock mounting location
  • Protects all exposed wiring after tail light removal
  • Made in the U.S.A.
Expected Delivery Date: October 30th - November 04th

$42.46 $49.95

Add to cart

Yamaha – Raptor 250 (2008-2013)
Brushed Aluminum Headlight Light Blocks
by HMF Engineering

  • Made from T6061 Aluminum
  • Install easily into stock mounting location
  • Protects all exposed wiring after tail light removal
  • Made in the U.S.A.
Expected Delivery Date: October 30th - November 04th

$42.46 $49.95

Add to cart

Yamaha – YFZ450 (2004-2013)
Brushed Aluminum Headlight Light Blocks
by HMF Engineering

  • Made from T6061 Aluminum
  • Install easily into stock mounting location
  • Protects all exposed wiring after tail light removal
  • Made in the U.S.A.
Expected Delivery Date: September 21st - 24th

$42.46 $49.95

Add to cart

Yamaha – YFZ450R/X (2009-2019)
Brushed Aluminum Headlight Light Blocks
by HMF Engineering

  • Made from T6061 Aluminum
  • Install easily into stock mounting location
  • Protects all exposed wiring after tail light removal
  • Made in the U.S.A.
Expected Delivery Date: October 30th - November 04th

$42.46 $49.95

Add to cart

Shipping out of 40+ warehouses across the United States

When you shop with RPO Powersports, you'll be connected to one of the largest networks of parts warehouses across the nation. What does that mean for you? Lower shipping costs and faster delivery times. Whether you're waiting for Beard Seats on your Polaris RZR XP 1000, or grabbing a Pelican Backpack to carry while riding your Can-Am Maverick X3, RPO Powersports can deliver the parts you need quickly, guaranteed.

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