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Ships within 48 hours · Estimated delivery Nov 5 - Nov 10
Unlike other aftermarket tuners
nearly all aftermarket exhaust systems are manufactured with 18mm ports
especially in setups using the Thunder Heart Micro Harness Controller
and supported in the USA for over 30 years
ThunderMax fully supports factory functions
Tmax Flag Steppin' Out Hat Harley-Davidson Unlike other aftermarket tunersThe Gold Stand of Performance. Standard fit, curved bill, and built to lastjust like ThunderMax. It stands for 30 years of Thunder Heart Performance setting The Gold Standard of Performance. The adjustable snapback gives you the perfect fit. Produced in the USA by Ace Graphics, made for the garage, the road, wherever you roll. thundermax for 2018 up softail models
