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Boyesen Rad Valves provide sharper throttle response and more horsepower by maintaining flow velocity and redirecting the intake charge to the intake ports. They offer one-piece aluminum casting, with no manifolds to trim, no plastic pieces to insert, and no messy glue, which can warp, shrink, melt, or crack. Rad Valves come complete with the valve, reeds, intake flange, gasket, and clamps.
( 1 )
$161.99
$131.50
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$245.99
Don't settle for anything less than the best. Boyesen Carbon Tech reeds are made from aerospace-grade, 100 percent carbon fiber--meaning they're long lasting and give better performance. They bolt directly to your stock reed cage without modifying anything else on your intake system and are available in different reed petal tensions to suit the track and your riding style. Reed petal tensions: * Low Tensions (LT) improve power delivery in the lower rpm ranges and are best suited for increasing response and initial acceleration * Mid Tensions (MT) improve power delivery in the mid-range and are ideal for increasing the overall power delivery of your engine * High Tensions (HT) improve power delivery in the upper rpm range and increase maximum output.
Not Yet Reviewed
$110.99
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$188.99
Clearance
Boyesen Rage Cages are designed to optimize airflow intake and fuel delivery. They offer instant acceleration and unequaled increases in horsepower and torque through the entire rpm range. Features include: * HP gains arrive sooner, peak higher, and carry longer * No power drop when exhaust valves open * Cast aluminum valve body won't fail or tear like plastic or rubber parts * Dual-stage carbon reeds improve performance and extend reed petal life * Maximum streamlined airflow eliminates turbulence and generates velocity
( 2 )
$329.99
$239.50
Boyesen QuickShot 3 accelerator pump covers completely fill the pump chamber with fuel and provide an adjustable leak jet circuit for simple hand-tuning and the ultimate in adjustable fuel injection. Features include: * Tunable leak jet maximizes volume of fuel and duration of squirt for all conditions * Investment cast and finished to precise tolerances * 25 percent more fuel capacity * High-volume vertical check valve located in the QS3 for precise, consistent fuel metering * Stops hesitation and bog * Instant throttle response * Improved low-end performance * Fits ALL Keihin FCR carbs * Simple bolt-on installation
( 1 )
$119.99
Boyesen QuickStart covers stop bogging and improve throttle response. Each of these patented systems features an adjustable, tunable leak jet and hot start assist integration, maximizing fuel volume and making hot engine kick-starts no longer a problem. QuickStart systems are investment cast aluminum and finished to precise tolerances, plus are simple bolt-ons for any current kick-start model. Take a serious, effective step towards achieving EFI levels of powersports performance with Boyesen QuickStarts.
Not Yet Reviewed
$170.99
Clearance
Boyesen Power Wings smooth out the turbulence so you can fly around the track and over the trails. These innovative units streamline the airflow to your carburetor, which increases air speed, horsepower, and torque in your 2 and 4-stroke engines. These well-crafted brass wings offer a precise fit, so they will not reduce carburetor bore size or create loss of power. Improve airflow and performance with aerodynamic Power Wings from Boyesen.
Not Yet Reviewed
$129.99
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