Thunder Max

16 products

Thunder Max is committed to developing products that push the boundaries of design and the levels of performance in the V-Twin motorcycle industry. Browse the range below!

THUNDER MAX

$308.99

* Replacement Wide Band Oxygen Sensor * ThunderMax replacement oxygen sensor for all ThunderMax EFI with AutoTune modules * Fits front or rear – sold each MFR PART No: Z309-355 ROLLIES PART No: ...

THUNDER MAX

$573.99

Features & Benefits:- * Get a much cooler running oil cooled M8 in about 15 minutes ! * Takes 15 minutes to install. * Completely plug and play with a ThunderMax ECM – Dont have a ThunderMa...

THUNDER MAX

$2,341.99

Fitment Note: Fitment for 2023-Up Roadking, 2023-2024 Ultra, and 2023-Up Trike use part number Z309-591 Fits Both VVT & Non-VVT Models ThunderMax is an industry award winning, performance EC...

THUNDER MAX

$2,013.99

ThunderMax is an industry award winning, performance ECM designed specifically for EFI equipped Harley Davidson® motorcycles. This highly advanced, stand-alone tuning system utilizes proprietary A...

THUNDER MAX

$2,013.99

Note: Trike Models an updated firmware file prior to installation (Due to traction control / RDRS) Please contact Rollies or support@thunder-max.com for this. Fitment 2024 Touring Models: Road K...

$2,013.99

$2,013.99

$2,012.99

$2,013.99

Sold Out

THUNDER MAX

$2,013.99

Sold Out

THUNDER MAX

$2,013.99

Sold Out

THUNDER MAX

$2,014.99

* CURRENTLY ONLY FITS NON-VVT MODELS * Road King & Trike use early fitment # Z309-591 ThunderMax is an industry award winning, performance ECM designed specifically for EFI equipped Harley Da...

THUNDER MAX

$2,014.99

THUNDER MAX

$2,013.99

THUNDER MAX

$2,013.99

Does not fit 2019-2020 Trike Models (Due to traction control / RDRS) 2018 Model Trike should not have RDRS. Dealer to confirm BEFORE purchase. ThunderMax is an industry award winning, performance...