Showing 1–12 of 18 results

  • 10 % OFFTaverner Motorsports - USB>Serial Port Adapter; Thundermax - Z372-002

    USB to Serial Port Adapter – Use on Windows 8 & 8.1

    $49 $44.10

    If you are using widows 8 or 8.1 you will need to get a Sabrent Cable Adaptor, model # M2100-TMAX. This adaptor is made to work with windows 8 operating systems.

  • 10 % OFFTaverner Motorsports - Thundermax;w/AutoTune S/Tail'11ONLY - Z309-361

    ThunderMax with AutoTune. Fits Softail 2011 Only

    $1,786 $1,607.40

    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 AutoTune technology with wide-band oxygen sensors to deliver unmatched performance and rideability. ThunderMax comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and…

  • 10 % OFFTaverner Motorsports - Thundermax; w/AutoTune V-Rod'02-17 - Z309-466

    ThunderMax with AutoTune. Fits V-Rod 2002-2017

    $1,786 $1,607.40

    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 AutoTune technology with wide-band oxygen sensors to deliver unmatched performance and rideability. ThunderMax comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and…

  • 10 % OFFTaverner Motorsports - Thundermax; w/AutoTune S/Tail'21up - Z309-592

    ThunderMax with AutoTune. Fits Softail 2021up

    $1,786 $1,607.40

    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 AutoTune technology with wide-band oxygen sensors to deliver unmatched performance and rideability. ThunderMax comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and…

  • 10 % OFFTaverner Motorsports - Thundermax; w/AutoTune S/Tail'18-20 - Z309-589

    ThunderMax with AutoTune. Fits Softail 2018-2020.

    $1,786 $1,607.40

    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 AutoTune technology with wide-band oxygen sensors to deliver unmatched performance and rideability. ThunderMax comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and…

  • 10 % OFFTaverner Motorsports - Thundermax; w/AutoTune S/Tail'16-17 - Z309-563

    ThunderMax with AutoTune. Fits Softail 2016-2017, Dyna Low Rider S 2016-2017 & Softail CVO 2014-15 Models with Throttle-By-Wire.

    $1,786 $1,607.40

    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 AutoTune technology with wide-band oxygen sensors to deliver unmatched performance and rideability. ThunderMax comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and…

  • 10 % OFFTaverner Motorsports - Thundermax; w/AutoTune S/Tail'12-15 - Z309-382

    ThunderMax with AutoTune. Fits Softail 2012-2015, Dyna 2012-2017 & Sportster 2014-2021

    $1,786 $1,607.40

    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 AutoTune technology with wide-band oxygen sensors to deliver unmatched performance and rideability. ThunderMax comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and…

  • 10 % OFFTaverner Motorsports - Thundermax; w/AutoTune S/Tail'01-10 - Z309-460

    ThunderMax with AutoTune. Fits Softail 2001-2010, Touring 2002-2007 & Sportster 2007-2009.

    $1,786 $1,607.40

    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 AutoTune technology with wide-band oxygen sensors to deliver unmatched performance and rideability. ThunderMax comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and…

  • 10 % OFFTaverner Motorsports - Thundermax; w/AutoTune FXD'04-11 & - Z309-485

    ThunderMax with AutoTune. Fits Dyna 2004-2011, Sportster 2010-2013, Rocker 2008-2010 & XR1200 2008-2012.

    $1,786 $1,607.40

    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 AutoTune technology with wide-band oxygen sensors to deliver unmatched performance and rideability. ThunderMax comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and…

  • 10 % OFFTaverner Motorsports - Thundermax; w/AutoTune FLH'21-24 - Z309-591

    ThunderMax with AutoTune. Fits Most Touring 2021-2024

    $1,786 $1,607.40

    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.Fitment2024 Touring Models:Road King Special – 114ci, Same as 2023 (Still Use’s Z309-591)Road Glide Limited – 114ci, Same as 2023 (Still Use’s Z309-591)Ultra Limited – 114ci, Same as 2023 (Still Use’s Z309-591)Does NOT…

  • 10 % OFFTaverner Motorsports - Thundermax; w/AutoTune FLH'17-20 - Z309-588

    ThunderMax with AutoTune. Fits Touring 2017-2020.

    $1,786 $1,607.40

    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 ECM designed specifically for EFI equipped Harley Davidson® motorcycles. This highly advanced, stand-alone tuning system utilizes proprietary AutoTune technology with wide-band oxygen sensors to deliver unmatched…

  • 10 % OFFTaverner Motorsports - Thundermax; w/AutoTune FLH'14-16 - Z309-562

    ThunderMax with AutoTune. Fits Touring 2014-2016.

    $1,786 $1,607.40

    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 AutoTune technology with wide-band oxygen sensors to deliver unmatched performance and rideability. ThunderMax comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and…