'86-2001 YZ125/250/400/426

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  • Regular price $184.95


Take this seriously. Sealing your engine comes first. We designed this system to lock out dirt from your intake tract by identifying several issues with the OEM filter receiver. It's guaranteed to save you hundreds if not thousands in engine repairs.  

CNC Machined in house in the USA. Kit includes Loud Mouth Intake, Neo-Seal Gasket, No Toil or Twin Air filter, hardware and detailed instructions.

The Loud Mouth replaces the stock configuration in your airbox removing the thumb screw, filter cage, screen (if applicable) and filter receiver.

Revolutionary Cageless Air Filter Design is 100% Obstruction Free

Provides the best seal ever available for the modern motocross bike

Clean Air Box even in the most extreme conditions

Quick 30 Second Filter Changes

Cooler Intake Charge

Boosted Horsepower, Torque and Instant Throttle Response

Amazing High Performance Intakes Sound (Within legal dB Limits)

Easy Installation, No Jetting/Mapping Required