Arctic Cat 650 V-Twin (04-09) HMF Exhaust

When we developed the Arctic Cat 650 V-Twin exhaust, we realized the real potential of
the machine. With dyno testing, we noticed a 10-15% increase over stock with the HMF
Performance Series. The Penland, with the TRM installed, increased the bottom end
torque allowing for better “hook up” in the rough terrain. If you’re looking to run quiet,
both exhaust series accept the HMF Quiet Core.

HMF Performance Series: Setting the standard for power and value, the HMF Performance Series has been tested for over a decade with endless championships. The specially designed, unrestricted core allows the exhaust to increase power evenly throughout the entire power curve. The Performance Series has the signature HMF sound with industry-leading end cap and color options, giving you a completely custom look and sound.

Penland Pro Series: Backed by the ATV legend Mike Penland, the Penland Pro Series was developed for serious off road racers and trail riders striving to achieve more low end torque. The removable Torque Range Modifer adds a low-to-mid range punch, allowing quads to hook-up better in rough conditions. The exhaust is made of T6061 aluminum and is air-rivoted shut for complete durability.

All HMF exhausts feature:

* USFS approved spark arrestor included
* 304 stainless steel flanges, headpipes & S-bends
* Tough T6061 aluminum or lightweight Carbon Kevlar exhaust shells
* Volumized, high performance glass wool packing
* Significantly lighter when compared to stock systems
* Made in the U.S.A.