Skip to content
Free shipping to the continental 48 (Alaska & Hawaii orders, call to order).
All products have accurate in stock quantities listed, if it shows in stock it’s actually in stock!
Free shipping to the continental 48 (Alaska & Hawaii orders, call to order).
All products have accurate in stock quantities listed, if it shows in stock it’s actually in stock!

Thundermax

THUNDERMAX 0713-0243 EA7000 Oil Cooler Fan

Original price $262.95 - Original price $262.95
Original price
$262.95
$262.95 - $262.95
Current price $262.95

Features Uses engine temp and vehicle speed to reduce heat and keep engines running cool Takes 15 minutes to install; does not require oil cooler ...

View full details
Original price $262.95 - Original price $262.95
Original price
$262.95
$262.95 - $262.95
Current price $262.95

THUNDERMAX 1020-0836 309-362 ECM with Integral Auto Tune System Module - '08-'13 FLHT

Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

Features Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Qui...

View full details
Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

THUNDERMAX 1020-1848 309-361 ThunderMax Engine Control Module Kit with Integral Auto Tune - Softail

Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

Features Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick...

View full details
Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

THUNDERMAX 1020-1851 309-460 ECM with Integral Auto Tune System - Non-Throttle By Wire

Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

Features Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Qui...

View full details
Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

THUNDERMAX 1020-1853 309-466 ThunderMax Engine Control Module Kit with Integral Auto Tune - V-Rod

Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

Features Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick...

View full details
Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

THUNDERMAX 1020-2118 309-562 ECM with Integral Auto Tune System - '14-'16 FLT

Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

Features Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Qui...

View full details
Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

THUNDERMAX 1020-2360 309-382 ECM with Integral Auto Tune System

Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

Features Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Qui...

View full details
Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

THUNDERMAX 1020-2361 309-485 ECM with Integral Auto Tune System

Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

Features Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Qui...

View full details
Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

THUNDERMAX 1020-2664 309-588 ECM with Integral Auto Tune System Kit - '17+ FLHT

Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

Features Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quic...

View full details
Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

THUNDERMAX 1020-2795 309-589 ThunderMax Engine Control Module Kit with Integral Auto Tune - '18-'20 Softail

Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

Features Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick...

View full details
Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

THUNDERMAX 1020-2850 309-563 ThunderMax Engine Control Module Kit with Integral Auto Tune - Softail

Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

Features Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick...

View full details
Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

THUNDERMAX 1020-3514 309-591 ECM Autotune Module Electronically Commutated Motor with Auto Tune - Touring

Original price $1,115.95 - Original price $1,115.95
Original price
$1,115.95
$1,115.95 - $1,115.95
Current price $1,115.95

Features 2 wide-band Bosch 5-wire oxygen sensors (18 mm) with AutoTune connection harness ThunderMax quick start easy install and printable compr...

View full details
Original price $1,115.95 - Original price $1,115.95
Original price
$1,115.95
$1,115.95 - $1,115.95
Current price $1,115.95

THUNDERMAX 1020-3515 309-592 ECM Autotune Module Electronically Commutated Motor with Auto Tune - Softail

Original price $1,170.95 - Original price $1,170.95
Original price
$1,170.95
$1,170.95 - $1,170.95
Current price $1,170.95

Features 2 wide-band Bosch 5-wire oxygen sensors (18 mm) with AutoTune connection harness ThunderMax quick start easy install and printable compr...

View full details
Original price $1,170.95 - Original price $1,170.95
Original price
$1,170.95
$1,170.95 - $1,170.95
Current price $1,170.95

THUNDERMAX 1020-4244 309-604 Engine Control Module with Integral Auto-Tune System - Touring

Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

Features Mounts conveniently in place of the factory ECM and plugs in to the existing harness Utilizes wide-band oxygen sensors and works as a clos...

View full details
Original price $1,088.95 - Original price $1,088.95
Original price
$1,088.95
$1,088.95 - $1,088.95
Current price $1,088.95

THUNDERMAX 1022-0039 309-355 Replacement ECM Oxygen Sensor

Original price $129.95 - Original price $129.95
Original price
$129.95
$129.95 - $129.95
Current price $129.95

Features Easy installation: replace the factory ECM, install new O² sensors and harness, load the correct map for your bike, and ride Replacement o...

View full details
Original price $129.95 - Original price $129.95
Original price
$129.95
$129.95 - $129.95
Current price $129.95

THUNDERMAX 2101-0070 EA5012 Twin Cam Stand-Alone Ignition System

Original price $365.95 - Original price $365.95
Original price
$365.95
$365.95 - $365.95
Current price $365.95

Features Designed for use in custom applications where a Twin Cam motor and crank sensor are used Complete ignition system includes module, coil, w...

View full details
Original price $365.95 - Original price $365.95
Original price
$365.95
$365.95 - $365.95
Current price $365.95

THUNDERMAX 2120-0023 EA4260 Micro Harness Controller Kit

Original price $359.95 - Original price $359.95
Original price
$359.95
$359.95 - $359.95
Current price $359.95

Features Billet 6061 T-6 aluminum housing and 7' trim-to-fit wiring design is compact and easily hidden on custom motorcycles Perform all fuse, rel...

View full details
Original price $359.95 - Original price $359.95
Original price
$359.95
$359.95 - $359.95
Current price $359.95

THUNDERMAX 2120-0086 EA4360 Micro Harness Controller Kit

Original price $406.95 - Original price $406.95
Original price
$406.95
$406.95 - $406.95
Current price $406.95

Features Billet 6061 T-6 aluminum housing and 7' trim-to-fit wiring design is compact and easily hidden on custom motorcycles Perform all fuse, rel...

View full details
Original price $406.95 - Original price $406.95
Original price
$406.95
$406.95 - $406.95
Current price $406.95

THUNDERMAX 2120-0675 EA4250D-C Electronic Harness Controller

Original price $369.95 - Original price $369.95
Original price
$369.95
$369.95 - $369.95
Current price $369.95

Features Compact design makes it easy to hide on a custom motorcycle Performs all fuse, relay and signal-canceling functions in one simple package ...

View full details
Original price $369.95 - Original price $369.95
Original price
$369.95
$369.95 - $369.95
Current price $369.95

THUNDERMAX DS-243195 EA4100CHR-DS Transmission Speedometer Sensor

Original price $90.95 - Original price $90.95
Original price
$90.95
$90.95 - $90.95
Current price $90.95

Features Chrome billet sensor Includes OEM Deutsch connector For use with stock-length starter motor on most '96-'03 Big Twin models Made in the U....

View full details
Original price $90.95 - Original price $90.95
Original price
$90.95
$90.95 - $90.95
Current price $90.95