S&S CYCLE

Single-fire and dual-fire function built into a single moduleAll-metal housing provides improved heat dissipationIgnition advance and timing degree markings are on the metal flangeSensor housings...

Updated version of the popular Crane HI-4 ignitionMore power than the stock ignitionSingle-fire and dual-fire function built into a single moduleAll-metal housing provides improved heat...

Significantly increase performanceProvides more horsepower without sacrificing torque10.6:1 compression ratioSimple EFI tuning with three calibration downloads for Dynojet® Power Vision® tuner

4-ply washable filter media for better filtration 20% increase in flowMade in the U.S.A. Indian -- Challenger -- (2021, 2020); Indian -- Challenger Dark Horse -- (2020, 2021); Indian -- Challenger...

Filter and adapters extend the teardrop housing out 1" for better exposure and a high-performance street racer lookFilter is 1" taller than standard filter and features a low-restriction, pre-oiled...

Adjustable cam timing so you can dial in the power curveBuilds power sooner and holds it for longerCompatible with high-compression pistonsHigher lift and longer duration than the stock camMade in...

Made from 52100 bearing materialInclude 4340 chromoly axles

Bolt on big bore kits mean easy installation with no machining and no rebalancingS&S bolt-in cams and premium tappets make the most of the added displacementCams are .482" lift and 240?? duration...

Bolt on big bore kits mean easy installation with no machining and no rebalancingS&S bolt-in cams and premium tappets make the most of the added displacementCams are .482" lift and 240?? duration...

Bolt on big bore kits mean easy installation with no machining and no rebalancingS&S bolt-in cams and premium tappets make the most of the added displacementCams are .482" lift and 240° duration...

Camshaft gear drive kits increase valve timing accuracy by eliminating timing chain lash and loosely-fit stock chain driveReverses the rear cam's direction of rotation, providing additional operating...

Camshaft gear drive kits increase valve timing accuracy by eliminating timing chain lash and loosely-fit stock chain driveReverses the rear cam's direction of rotation, providing additional operating...