060" AFM (Aluminum Foamet Material)

Not legal for pollution controlled motorcycles

Not baffled

lower sliders

OEM style replacement for 41761-58

ThunderMax ECM with Integral Auto-Tune System Kromade Skruv-och muttrar 060" AFM (Aluminum Foamet Material)Fitments 07 09 Sportster, except 09 XR1200, 01 10 Softail, 02 07 Touring Would you like to have full control of your EFI system, freedom to make major or minor adjustments without the need for a dyno or a degree in computer technology? Here is a simple solution ThunderMax with Auto Tune! The ThunderMax is a product that replaces the factory module and is not an add on box or signal modifier. The ThunderMax is purpose built to deliver uncompromising