Designed specifically to address the needs of tuned motors built for high horsepower applications
Use a unique extended inner collector maximizing performance
Feature equal-length stepped head pipes; systems for Softail and Sportster feature 1-step headers, 1 3/4 inch to 1 7/8 inch
4" straight-style performance muffler body with 2 1/2 inch x 16 1/2 inch baffle and billet end cap with contrasting machined flutes
Include full-coverage heat shields
Oxygen sensor port plugs also included for non-sensor applications
PART #s 1800-1284 and 1800-1285 are stepped 3x (1 3/4 inch-1 7/8 inch-2 inch) and are for 125+ horsepower applications
Made in the U.S.A.