4 in. Mufflers

• Features an open, free flowing power stepped header design. The Xtreme Dual stepped header design scavenges the exhaust, allowing the engine to operate at peak performance thus maximizing horsepower
• Equal length head pipes provides for equal exhaust gas temperature between cylinders for optimum performance
• "Rider friendly" header configuration that routes the head pipes away from the rider's legs, which reduces heat and provides for a comfortable ride
• Features 12mm & 18mm O2 ports, with optimum placement for dyno tuning and proper measurement of the exhaust gas concentration from the port, making the engine perform efficiently. Also eliminates the need for bung adapters used by other manufacturers which fail to properly place the sensor within the exhaust flow
• Fitted with anti-reversion louvers which eliminate the negative pulse from traveling back into the port and robbing the engine of horsepower
• Full coverage, laser cut heat shields
• Made in the USA

Note: For the Freewheeler FLRT - 2015-2016, Street Glide Trike FLHXXX 2010-2011 and the Tri-Glide Ultra Classic - FLHTCUTG   2009-2016 you must use Adapter Kit 44-08803

(1) Chrome front header with black heat shield

(1) Chrome rear header with black heat shield

(2) Black mufflers with black end caps (Left,Right)

(1) Header P-Clamp

(1) Transmission support clamp

(2) 2-1/8" Barrel clamps

(10) #28 Hose clamps

(2) Exhaust gaskets

(1) Black round aluminum front floorboard spacer

(1) Black aluminum front floorboard peg spacer

(2) 18mm O2 Sensor plugs

(2) 12mm O2 Sensor plugs

(1) 3/8"-16 x 3-1/4" Socket cap head bolt

(1) 3/8"-16 x 1-3/4" Socket cap head bolt

(1) 5/16"-18 x 1-1/4" Serrated flange hex head bolt

(4) 5/16"-18 x 5/8" Hex head bolts

(4) 5/16" Flat washers

(4) 5/16"-18 Nylock nuts

Instructions

The Air Resources Board (ARB) does not permit the use of aftermarket emission-related parts that alter the air/fuel ratio of an emission-controlled vehicle. Due to these legal restrictions this part cannot be shipped to California.