What is the primary benefit of using a gear drive camshaft over a chain drive?

Gear drive camshafts offer more precise valve timing and reduce the potential for cam chain runout, which can lead to more consistent engine performance. This setup also eliminates the need for a cam chain tensioner.

Does this kit include everything needed for installation?

The kit includes the 475 camshaft and the Dynojet PV-3 tuner. For optimal performance and emissions compliance, it is designed to work with specific S&S Cycle air cleaner kits and mufflers, as well as either a stock or S&S Cycle exhaust header, which are sold separately.

Can I use this kit on a 2020 Harley-Davidson Touring model?

This specific kit is not yet available for 2020 Touring models. The manufacturer's fitment data indicates it is designed for 2017-2019 model years for most Touring applications, though some models extend to 2021.

S&S Cycle 475 Gear Drive Camshaft & Dynojet PV-3 Kit 330-072

Name: S&S Cycle 17-19 M8 Touring Models 475 Gear Drive Camshaft & Dynojet PV-3 Kit
Brand: S&S Cycle
Price: 846.95 USD
Availability: InStock

S&S Cycle 17-19 M8 Touring Models 475 Gear Drive Camshaft & Dynojet PV-3 Kit

$846.95

On Backorder — Expected to ship by May 7, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

S&S Cycle 17-19 M8 Touring Models 475 Gear Drive Camshaft & Dynojet PV-3 Kit

Key Features

Fits 2017-2021 Harley-Davidson Touring models.
Emissions-legal aftermarket camshaft for M8 Touring models.
Achieves over 100 horsepower at the wheel.
Includes 475 gear drive camshaft and Dynojet PV-3 tuner.
Dynojet PV-3 features a high-contrast display viewable in direct sunlight.
PV-3 is weather-resistant for use in all conditions and displays vehicle data channels in real-time.

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Will this fit your vehicle?

Product Details

If you're looking to unlock more power from your 2017-2019 Harley-Davidson M8 Touring model, this S&S Cycle 475 Gear Drive Camshaft and Dynojet PV-3 Tuner kit is designed to get you there. This package is the first of its kind to offer emissions-legal aftermarket performance for these bikes, aiming for over 100 horsepower at the wheel without needing expensive dyno tuning. It's a complete bolt-in solution that changes the way your bike performs.

The kit includes the 475 camshaft, which is a gear-drive design for precise timing and reduced runout compared to chain-drive systems. It's paired with the Dynojet Power Vision 3 (PV-3) tuner. This handheld device features a high-contrast display that's easy to read even in direct sunlight and is weather-resistant, making it suitable for all riding conditions. The PV-3 allows you to view vehicle data channels in real-time and upload custom tunes, eliminating the need for a separate dyno session. This kit is specifically designed to work with S&S Cycle's Stealth air cleaner kits and Mk45 mufflers, using either a stock header or their Eldorado exhaust system for optimal results.

This kit is a well-built package for riders who want a significant performance improvement while staying within emissions regulations. It's important to note that this kit is not yet available for 2020 Touring models. For the best results, consider pairing it with compatible S&S Cycle exhaust and air intake components.