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Editor's Pick Thundermax M8 17' To 20' Touring 1020-2664 309-588 Bonkers Deal: 30% Off [R3Q9cSvy]

$83.99 $268.99 -69%

ThunderMax M8 Performance ECM The ThunderMax M8 is designed for 17' to 20' touring motorcycles, offering a comprehensive 1020-2664 309-588 performance package. This system is a game-changer for riders looking to enhance their motorcycle's engine perf

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Editor's Pick Thundermax M8 17' To 20' Touring 1020-2664 309-588 Bonkers Deal: 30% Off [R3Q9cSvy]

ThunderMax M8 Performance ECM

The ThunderMax M8 is designed for 17' to 20' touring motorcycles, offering a comprehensive 1020-2664 309-588 performance package. This system is a game-changer for riders looking to enhance their motorcycle's engine performance and rideability. With its easy installation and user-friendly interface, the ThunderMax M8 is the perfect addition to any touring bike.

Key Features and Benefits

The ThunderMax M8 is packed with features that make it a standout product. Its easy to install and simple to use design ensures that you can quickly transform your motorcycle's performance. Key features include increased engine performance, cooler and smoother running, and adjustable idle speed and rev limit control. The system doesn't require a dyno, as it automatically tunes itself to your riding style and conditions. This means you'll never outgrow it, as it easily accommodates bike changes like pipes, cams, and more. Plus, it's 100% engineered and made in the USA, ensuring top-notch quality and reliability.

Complete System Package

The ThunderMax M8 system includes everything you need to get started. You'll receive the Performance Engine Control Module (ECM), two wide-band Bosch 5-Wire Oxygen Sensors, a USB communication cable, the TMax Tuner Software Disc, and a comprehensive user's manual. This package is designed to provide you with a seamless and hassle-free installation process. With the ThunderMax M8, you can expect a 3-year factory limited warranty, giving you peace of mind with your purchase. Currently, the system does not fit 2020 models with traction control (RDRS), but its versatility and performance make it a valuable investment for any touring motorcycle owner.

What Our Customers Say

January 29, 2026

Absolutely no complaints!

It's a really solid and a very high-quality product.

- Berwyn A..

January 29, 2026

Absolutely no complaints!

Very happy with my purchase. And many, many thanks.

- Merfyn X..

January 29, 2026

Absolutely no complaints!

An excellent product. It is very, very, very clever.

- Meleri G..

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