HMF Engineering

041283606775

HMF 041283606775 Performance Exhaust: Yamaha Grizzly 660

Mufflers

Fits: 02-08
Slip On Round Side mounts Turn-Down-Polished End Cap
EQUAL POWER: The Performance Series distributes power evenly throughout the entire RPM range.
4-6 dB INCREASE: Depending on the model, you can expect a 4-6 dB increase over stock.
UNRESTRICTED CORE: The Performance Series uses a 2 1/8" non-restrictive core for maximum flow.

Setting the standard for power and value, the HMF Performance Series has been track tested with over a decade of championships. The specially designed, unrestricted core provides maximum flow and allows the exhaust to increase horse power and torque evenly throughout the entire power curve. The trademark to the HMF Performance Series is the exhaust's sound. With a deep, aggressive sound, you'll typically see a 4-6 dB increase from the stock exhaust system. And with industry-leading end cap and color options, you are sure to add a completely custom look and sound to your machine.

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