This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.
Supertrapp Exhaust 4″ Stout Slip-Ons For Harley Touring
The Stout Mufflers have massive 4″ non-tunable steel bodies that are designed with inlets that flow better into OEM headpipes as well as SuperTrapp True Dual Headpipes.
Features:

Streamlined, internal tapered, billet aluminum end caps with preinstalled recessed fasteners

Minimally (2 dB) louder than stock

Made in the USA

Sold in pairs