Skip to content

SP CONCEPTS M8 SOFTAIL EXHAUST- BIG BORE 4.5

$1,199.99

SP CONCEPTS M8 SOFTAIL EXHAUST- BIG BORE 4.5

FOR ST/ SPORT GLIDE MODELS, PLEASE SELECT THE OPTION FROM THE DROP-DOWN BOX. THIS IS SO WE CAN INCLUDE THE PROPER MOUNTING BRACKET WITH YOUR ORDER

  • 4.5” HIGH FLOW PERFORMANCE ROLLED CONE MUFFLER WITH STEPPED BAFFLE FROM 2 ¼ TO 2 ½ INCHES. INCREASES BOTTOM TO MID-RANGE TORQUE AND HORSEPOWER ON ALL MOTORS. TUNED PROPERLY CAN ACCOMMODATE 88" TO 143"
  • 065 STAINLESS STEEL HEADERS STEPPED FROM 1 ¾” TO 1 7/8” TO 2” AT THE COLLECTOR
  • CNC BILLET ALUMINUM ENDCAP
  • HAND TIG WELDED FROM TOP TO BOTTOM
  • MACHINED STAINLESS STEEL HEADER COLLARS
  • 18MM O2 BUNGS WITH 12MM ADAPTERS, ALLOW FOR STOCK OR AUTOTUNE SENSORS
  • COMPLETE HARDWARE KIT WITH EVERYTHING YOU NEED TO MOUNT IT UP


DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION-CONTROLLED MOTOR VEHICLES.

IF FOR RACE OR OFF-HIGHWAY USE OUR CA EXHAUST WAIVER WILL NEED TO BE SIGNED AND RETURNED PRIOR TO SHIPPING. 

CALIFORNIA CARB WAIVER AVAILABLE HERE:

https://cdn.shopify.com/s/files/1/0157/0363/8064/files/CA_CARB_Waiver.pdf?573