SP CONCEPTS 99-05 DYNA EXHAUST- BIG BORE 4.5"

• 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

All sales on exhausts systems are final and cannot be returned under any circumstances as they are all custom made to order. There is a short lead time and typically takes 2-4 weeks to ship.

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