ThunderMax Z309-591 ThunderMax w/AutoTune for Touring 21-Up • The kit features a

• The kit features a set of gas charged monotube fork cartridges and a set of custom tuned fork springs

• Replaces OEM 33031-80

• Balanced for stock piston weight (1060g)

• Magnums patented non-abrasive Sterling Chromite" metal braiding stays bright and chrome-like in brilliancy

* Compatable with Throttle-by-Wire or Cable Throttle

ThunderMax Z309-591 ThunderMax w/AutoTune for Touring 21-Up • The kit features aExhaust Note: On 2010up FLH 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 purchase by the ORIGINAL consumer for a period of 3