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

Brand Image

$1,415.00 RRP

or 4 fortnightly payments of $353.75 with Afterpay More info


Make an enquiry

Fit FXSB’14-15 (Cable Throttle only)


Exhaust Note: On 2012up Softail models and 2012up Dyna models, the OEM exhaust system has 12mm o2 ports. The factory 12mm exhaust system is not compatible with the 18mm ThunderMax oxygen sensors. Models with 12mm ports require the purchase an aftermarket exhaust system with 18mm ports.


* A 3 Year Limited Warranty covers the Thundermax ECU and the Autotune module against defects in materials or workmanship from the date of purchaseby the ORIGINAL consumer for a period of 3 years.

* If the product fails under normal use due to an electronic component failure within the warranty period, then the item must be returned direct to Zippers for testing and assesment.

* Zippers will repair or replace at their discretion the defective item with a new, repaired or factory rebuilt replacement.

* There is NO warranty on the OXYGEN SENSORS!

* This product must ONLY be used in such a way as to ensure the vehicle remains compliant with the relevant emission control requirements.

* Responsibility rests with the installer to ensure appropriate test equipment is used to validate the above.

Tech Tip:-

* Does Not Fit Dyna S 2012up.

* Does Not Fit CVO Breakout Models.

* Does Not Fit TBW models.