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$1,088.95
Thundermax ECM With Integral Auto Tune System For 2025 Harley-Davidson M8 Softail
Westend Motorsports
$1,088.95
Thundermax ECM With Integral Auto Tune System For 2025 Harley-Davidson M8 Softail
Westend Motorsports
$1,088.95
Thundermax ECM With Integral Auto Tune System For '18-20 Harley-Davidson M8 Softail
Westend Motorsports
$1,088.95
Thundermax ECM With Integral Auto Tune System For '18-20 Harley-Davidson M8 Softail
Westend Motorsports
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2004-2013
RevZilla
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Thundermax ECM Performance Auto Tuner For Harley 2004-2013
RevZilla
$1,088.95
Thundermax Engine Control Module Kit With Integral Auto Tune For '02-17 Harley Davidson V-Rod Models
Westend Motorsports
$1,088.95
Thundermax Engine Control Module Kit With Integral Auto Tune For '02-17 Harley Davidson V-Rod Models
Westend Motorsports
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Thundermax ECM With Auto-Tune For '16-17 Harley Davidson Softail Models
Westend Motorsports
$1,088.95
Thundermax ECM With Auto-Tune For '16-17 Harley Davidson Softail Models
Westend Motorsports
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2014-2020 OS
J&P Cycles
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Thundermax ECM Performance Auto Tuner For Harley 2014-2020 OS
J&P Cycles
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Thundermax ECM Performance Auto Tuner For Harley 2014-2020
RevZilla
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2014-2020
RevZilla
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Thundermax ECM W/ Auto-Tune Closed Loop System For '08-13 FL Touring Models And '09-13 Trike
Westend Motorsports
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Thundermax ECM W/ Auto-Tune Closed Loop System For '08-13 FL Touring Models And '09-13 Trike
Westend Motorsports
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2017-2020
RevZilla
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2017-2020
RevZilla
$1,088.95
Thundermax ECM With Auto-Tune For '23.5-Up Harley Davidson Touring Center Cooled Models For Both VVT And Non VVT Engines
Westend Motorsports
$1,088.95
Thundermax ECM With Auto-Tune For '23.5-Up Harley Davidson Touring Center Cooled Models For Both VVT And Non VVT Engines
Westend Motorsports
$1,088.95
Thundermax ECM W/ Integral Auto-Tune System For '11 FXST/FLST Models
Westend Motorsports
$1,088.95
Thundermax ECM W/ Integral Auto-Tune System For '11 FXST/FLST Models
Westend Motorsports
$1,011.95
Thundermax ECM W/ Integral Auto-Tune System For '08-10 Harley Davidson FXCW/C, '04-11 FXD/FXDWG, '09 SE Softail, '10-13 XL Models
Westend Motorsports
$1,011.95
Thundermax ECM W/ Integral Auto-Tune System For '08-10 Harley Davidson FXCW/C, '04-11 FXD/FXDWG, '09 SE Softail, '10-13 XL Models
Westend Motorsports
$1,170.95
Thundermax Fuel Tuner With Auto Tune For '21-24 Harley Davidson Softail Models (Click For Fitment)
Westend Motorsports
$1,170.95
Thundermax Fuel Tuner With Auto Tune For '21-24 Harley Davidson Softail Models (Click For Fitment)
Westend Motorsports
$1,088.95
Thundermax Wavetune EFI Module For '99-01 Harley Davidson Magnetti Marelli Models
Westend Motorsports
$1,088.95
Thundermax Wavetune EFI Module For '99-01 Harley Davidson Magnetti Marelli Models
Westend Motorsports
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2017-2020 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2017-2020 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2004-2013 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2004-2013 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 1999-2001 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 1999-2001 OS
J&P Cycles
$1,115.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2021-2023
RevZilla
$1,115.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2021-2023
RevZilla
$1,115.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2021-2023 OS
J&P Cycles
$1,115.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2021-2023 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Softail 2011
RevZilla
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Softail 2011
RevZilla
$1,088.95
Thundermax ECM With Integral Auto Tune System For '14-16 Touring And Trike Models
Westend Motorsports
$1,088.95
Thundermax ECM With Integral Auto Tune System For '14-16 Touring And Trike Models
Westend Motorsports
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley FLHX / FLTRX 2024-202
RevZilla
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley FLHX / FLTRX 2024-202
RevZilla
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Thundermax ECM Performance Auto Tuner For Harley Softail 2011 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Softail 2011 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 1999-2001
RevZilla
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 1999-2001
RevZilla
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Thundermax ECM Performance Auto Tuner For Harley Touring 2014-2016
RevZilla
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Thundermax ECM Performance Auto Tuner For Harley Touring 2014-2016
RevZilla
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2014-2016 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2014-2016 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley FLHX / FLTRX 2024-2026 OS
J&P Cycles
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Thundermax ECM Performance Auto Tuner For Harley FLHX / FLTRX 2024-2026 OS
J&P Cycles
$1,115.95
Thundermax ECM Autotune Module For '21-25 Harley Davidson Touring Models (W/O Center Cool Motor) Excludes 2023-2024 CVO (VVT)
Westend Motorsports
$1,115.95
Thundermax ECM Autotune Module For '21-25 Harley Davidson Touring Models (W/O Center Cool Motor) Excludes 2023-2024 CVO (VVT)
Westend Motorsports
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2004-2013
Cycle Gear
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2004-2013
Cycle Gear
$1,088.95
Thunder Heart Performance Thundermax ECM W/Auto Tune - 309-588 For Select Harley-Davidson Motorcycles
Dennis Kirk
Free shipping
$1,088.95
Thunder Heart Performance Thundermax ECM W/Auto Tune - 309-588 For Select Harley-Davidson Motorcycles
Dennis Kirk
$1,088.95
Thunder Heart Performance Thundermax ECM W/Integral Auto Tune System - 309-589 For 2018-2020 Harley-Davidson Softail Motorcycles
Dennis Kirk
Free shipping
$1,088.95
Thunder Heart Performance Thundermax ECM W/Integral Auto Tune System - 309-589 For 2018-2020 Harley-Davidson Softail Motorcycles
Dennis Kirk
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2014-2020
Cycle Gear
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2014-2020
Cycle Gear
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Softail 2011
Cycle Gear
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Thundermax ECM Performance Auto Tuner For Harley Softail 2011
Cycle Gear
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2017-2020
Cycle Gear
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2017-2020
Cycle Gear
$1,088.95
Thunder Heart Performance Thundermax ECM W/Auto Tune - 309-563 For 2014-2017 Harley-Davidson Softail And 2016-2017 Harley-Davidson Dyna Motorcycles
Dennis Kirk
Free shipping
$1,088.95
Thunder Heart Performance Thundermax ECM W/Auto Tune - 309-563 For 2014-2017 Harley-Davidson Softail And 2016-2017 Harley-Davidson Dyna Motorcycles
Dennis Kirk
$1,115.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2021-2023
Cycle Gear
$1,115.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2021-2023
Cycle Gear
THUNDERMAX Auto Tuner installation on Road King M8 107Ci Stage 2 | Zeus Garage
5:37
THUNDERMAX Auto Tuner installation on Road King M8 107C…
1.7K viewsDec 30, 2021
FacebookZeus Garage
2017 M8 with SVT Boneshakers Dyno Tuned Thundermax
12:03
2017 M8 with SVT Boneshakers Dyno Tuned Thundermax
5.1K viewsJul 29, 2018
YouTubeJonathan E
HD 107 M8 Performance upgrade / Zippers, D&D, Thunder max
11:13
HD 107 M8 Performance upgrade / Zippers, D&D, Thunder max
108.4K viewsJun 6, 2019
YouTubeAdam Sandoval
2021 Road Glide, D&D billet cat 2:1, Red Shift 468 cam, Thundermax M8 tuner
2:31
2021 Road Glide, D&D billet cat 2:1, Red Shift 468 cam, Thundermax M…
24.3K viewsMar 31, 2022
YouTubeFiveOenduro
-Update- 2021 Road Glide, D&D Billet Cat 2:1, Red Shift 468 cam, Thundermax M8 Tuner
6:01
-Update- 2021 Road Glide, D&D Billet Cat 2:1, Red Shift 468 cam, T…
7.3K viewsMay 5, 2023
YouTubeFiveOenduro
Thundermax Tuner For My 153 CI Gen 2 M8!
9:22
Thundermax Tuner For My 153 CI Gen 2 M8!
4.1K views8 months ago
YouTube2147crew
NEW ThunderMax Auto Tune Wave Tune for 2014 Harley Touring DYNO TEST
2:22
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22.9K viewsJan 28, 2014
YouTubeCycleSolutions
8:02
Thundermax Tune & Dyno Results On 2021 Harley Davidson Road King
41.3K viewsFeb 11, 2022
YouTubeCycleSolutions
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33.7K viewsNov 17, 2020
YouTubeKRUESI ORIGINALS
6:30
HPi x TMax - 128 M8 Build for @milhouse_tmax
7.3K viewsOct 14, 2021
YouTubeThunderMax EFI
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ThunderMax TBW: How to Install the TMax Tuner Software
15.1K viewsSep 10, 2010
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30:50
Tune Your Own ThunderMax EFI (Step-by-Step DIY Harley Guide), #…
39.1K viewsFeb 17, 2025
YouTubeSamson V-Twin, Harley Davidson Specialist
10:57
ThunderMax Installation Guide with Expert Bob Goad: Don't Kill Your …
4 views1 month ago
YouTubeHarrison's Custom Cycles
28:53
Harley M8 ThunderMax Tuner, Wood 22XD cam first Dyno Run
2.4K viewsDec 16, 2023
YouTubeBearded Breeden
ThunderMax Auto Tune 309-591 for 2021-Newer Harley-Davidson Tour…
Sep 27, 2021
cyclesolutions.com
18:43
How to tune a Thundermax on a Harley Davidson fuel injection - Kr…
33.5K viewsJun 26, 2024
YouTubeKRUESI ORIGINALS
2:45
ThunderMax Performance ECM 2024-Up Touring® Installation
4.8K viewsFeb 10, 2025
YouTubeThunderMax EFI
5:22
How to Load a Thunder Max Model in 5 Minutes - Trask Performance
20.1K viewsDec 12, 2016
YouTubeTrask Performance
10:58
How To Program a Thunderheart Thundermax Auto Tune Tutorial H…
56.3K viewsDec 13, 2019
YouTubeCycleSolutions
0:22
Harley Engine Tuning: 4000+ Tuning Points with ThunderMax!
771 viewsJan 27, 2025
YouTubeMichael Bertini
1:45
ThunderMax Knock Control for HD M8 Bikes
2.8K views11 months ago
YouTubeThunderMax EFI
ThunderMax ECM Performance Auto Tuner For Harley 2014-2020
Feb 8, 2023
jpcycles.com
0:56
How to auto tune your Harley Davidson Without a Dyno! Jake fr…
24.5K viewsApr 27, 2018
YouTubeCycleDrag
3:48
ThunderMax is Performance!
101.1K viewsDec 5, 2011
YouTubeThunderMaxAV
12:58
Thundermax Stage II Install, Harley Davidson, Thundermax Tuner for …
2K views11 months ago
YouTubeSamson V-Twin, Harley Davidson Specialist
0:48
Getting ready for the long weekend. . ThunderMax is the smoothest an…
1.8K viewsApr 18, 2019
FacebookThunderMax EFI
18:03
Making power Harley M8 / Sreamin Eagle vs Zipper, Thunder Max, D&D
204.7K viewsDec 31, 2018
YouTubeAdam Sandoval
1:50
ThunderMax TBW: How to Initialize the ThunderMax TBW
21.9K viewsOct 29, 2010
YouTubeThunderMaxAV
7:35
Thundermax Tri-Glide Stage II Install, Thundermax Tuner for Harl…
583 views11 months ago
YouTubeSamson V-Twin, Harley Davidson Specialist
8:00
ThunderMax TBW: Installation Guide
41.3K viewsApr 12, 2011
YouTubeThunderMaxAV
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Shop ThunderMax Tuner M8

Sponsored
About our ads
$1,088.95
Thundermax ECM With Integral Auto Tune System For 2025 Harley-Davidson M8 Softail
Westend Motorsports
$1,088.95
Thundermax ECM With Integral Auto Tune System For 2025 Harley-Davidson M8 Softail
Westend Motorsports
$1,088.95
Thundermax ECM With Integral Auto Tune System For '18-20 Harley-Davidson M8 Softail
Westend Motorsports
$1,088.95
Thundermax ECM With Integral Auto Tune System For '18-20 Harley-Davidson M8 Softail
Westend Motorsports
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2004-2013
RevZilla
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2004-2013
RevZilla
$1,088.95
Thundermax Engine Control Module Kit With Integral Auto Tune For '02-17 Harley Davidson V-Rod Models
Westend Motorsports
$1,088.95
Thundermax Engine Control Module Kit With Integral Auto Tune For '02-17 Harley Davidson V-Rod Models
Westend Motorsports
$1,088.95
Thundermax ECM With Auto-Tune For '16-17 Harley Davidson Softail Models
Westend Motorsports
$1,088.95
Thundermax ECM With Auto-Tune For '16-17 Harley Davidson Softail Models
Westend Motorsports
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2014-2020 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2014-2020 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2014-2020
RevZilla
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2014-2020
RevZilla
$1,088.95
Thundermax ECM W/ Auto-Tune Closed Loop System For '08-13 FL Touring Models And '09-13 Trike
Westend Motorsports
$1,088.95
Thundermax ECM W/ Auto-Tune Closed Loop System For '08-13 FL Touring Models And '09-13 Trike
Westend Motorsports
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2017-2020
RevZilla
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2017-2020
RevZilla
$1,088.95
Thundermax ECM With Auto-Tune For '23.5-Up Harley Davidson Touring Center Cooled Models For Both VVT And Non VVT Engines
Westend Motorsports
$1,088.95
Thundermax ECM With Auto-Tune For '23.5-Up Harley Davidson Touring Center Cooled Models For Both VVT And Non VVT Engines
Westend Motorsports
$1,088.95
Thundermax ECM W/ Integral Auto-Tune System For '11 FXST/FLST Models
Westend Motorsports
$1,088.95
Thundermax ECM W/ Integral Auto-Tune System For '11 FXST/FLST Models
Westend Motorsports
$1,011.95
Thundermax ECM W/ Integral Auto-Tune System For '08-10 Harley Davidson FXCW/C, '04-11 FXD/FXDWG, '09 SE Softail, '10-13 XL Models
Westend Motorsports
$1,011.95
Thundermax ECM W/ Integral Auto-Tune System For '08-10 Harley Davidson FXCW/C, '04-11 FXD/FXDWG, '09 SE Softail, '10-13 XL Models
Westend Motorsports
$1,170.95
Thundermax Fuel Tuner With Auto Tune For '21-24 Harley Davidson Softail Models (Click For Fitment)
Westend Motorsports
$1,170.95
Thundermax Fuel Tuner With Auto Tune For '21-24 Harley Davidson Softail Models (Click For Fitment)
Westend Motorsports
$1,088.95
Thundermax Wavetune EFI Module For '99-01 Harley Davidson Magnetti Marelli Models
Westend Motorsports
$1,088.95
Thundermax Wavetune EFI Module For '99-01 Harley Davidson Magnetti Marelli Models
Westend Motorsports
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2017-2020 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2017-2020 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2004-2013 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley 2004-2013 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 1999-2001 OS
J&P Cycles
$1,088.95
Thundermax ECM Performance Auto Tuner For Harley Touring 1999-2001 OS
J&P Cycles
$1,115.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2021-2023
RevZilla
$1,115.95
Thundermax ECM Performance Auto Tuner For Harley Touring 2021-2023
RevZilla