Nasty Bastard Touring Exhast

ThunderMax for '02-'07 Touring® Models

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. Th...

THUNDERMAX FOR '08-'13 TOURING® MODELS

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. Th...

THUNDERMAX XMS 2008-2013 Touring Models (Throttle-by-Wire)

ThunderMax Exhaust Matched Series ECM Applications:• 2008 - 2013 Touring® Models (Throttle-by-Wire) ThunderMaxis an industry award winning, performance ECM designed specifically for EFI equipped Harley Davidson® motorcycles. The ThunderMax Exhaust Matched Series (XMS) was developed for Touring ...

Thundermax XMS 2017+

ThunderMax Exhaust Matched Series ECM Applications: • 2017 Touring® Models (Throttle-by-Wire) With 107 & 114 cui Engine Models With Stage 1 Upgrades (Hi-Flow Air Cleaner & Exhaust Systems)   This product is intended for "RACE READY" vehicles only and is not for sale or use on vehicles oth...