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NEW Protective Maxtex® 1000 D outer shell for superior abrasion resistance
* Deflective disc valve stacks
25" Dimension
* Forged steel shaft wrapped in high traction knurled rubber and finished off with a billet aluminium end cap
ThunderMax with AutoTune. Fits Softail 2025up XXL NEW Protective Maxtex® 1000 DProduct Details 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 oxygen sensors,