SuperTrapp SuperMeg 2:1 - Chrome Installation Manual

828-71572 Chrome 2:1 For Harley-Davidson FLST/FXST Softail Models
827-71572 Black 2:1 For Harley-Davidson FLST/FXST Softail Models

STOCK SYSTEM REMOVAL

1. On 2007 and later models: Disconnect the oxygen sensors from the front and rear head pipes.
2. Remove the stock exhaust system as described in your owner's manual. Retain the flange nuts for the new system installation.
3. Remove the stock snap rings and flanges from the head pipes and retain for the new system installation.
4. On 2007 and later models: Remove the oxygen sensors from the front and rear head pipes and retain for new system installation.
5. FLST MODELS ONLY. Remove right side floorboard. The floorboard will be re-installed once the new system installation is complete.
6. Remove the stock mount bracket and retain screws for new system installation.
7. The exhaust gaskets should be inspected and replaced to achieve a proper fit and seal. Replacement gaskets are available from your Harley Davidson dealer, part number 65324-83A.

SYSTEM INSTALLATION

1. Mount discs/end cap on muffler. See disc installation diagram
2. Using stock muffler bracket mounting screws, install the new muffler mount support bracket in the stock location. Torque the screws to Harley Davidson specifications.
3. Install stock flanges on both head pipes.
4. 1984-2006 models: Apply anti-seize to the threads of the oxygen sensor port plugs, supplied. Install the plugs into the head pipes and tighten.
   2007-later models: Apply anti-seize to the threads of the oxygen sensors and install in new head pipes.
   
   Apply anti-seize to the threads of the oxygen sensor ONLY. Contamination of the sensor probe can adversely affect engine performance.)
5. Mount the head pipes using the stock nuts. DO NOT TIGHTEN.
6. Slide two T-bolts (supplied) into the slotted bracket on the back of the muffler and install the T-bolt clamp (supplied) onto the inlet end of the muffler.
7. Slide the muffler onto the outlet end of the head pipe. Align the T-bolts with the holes in the mounting bracket. Install the flat washers and locknuts onto the T-bolts. DO NOT TIGHTEN.
8. Align the system and tighten all fasteners and clamps starting at the muffler and working up to the flange nuts.
9. On 2007 and later models: Reconnect oxygen sensors to wiring harness.

HEAT SHIELD INSTALLATION

1. Slide the hose clamps into the slots on the back of each shield. Orient the clamps to gain the easiest access to tighten them while in position on the head pipe.
2. Install the heat shields on the head pipes and collector. The tabs on the front of the collector shield must fit into the clips on the end of the front and rear shields.
3. Tighten the shields starting with the rear shield, then the collector shield, and finally the front shield. Align the shields as you tighten to minimize the gap between the head pipe and collector shields.
4. FLST SOFTAILS ONLY: Re-install the right side floorboard.

AFTER A SHORT RIDE CHECK AND RETIGHTEN ALL FASTENERS.

TUNING TIPS

For maximum performance gains, we suggest using 20 discs and a free-flowing air filter kit with this exhaust system. As always, making performance modifications may affect the fuel delivery system of your motorcycle. It is recommended by Supertrapp to have your fuel delivery system tuned to ensure maximum performance and reliability. This work should always be performed by a certified technician.

We DO NOT suggest removing the muffler packing material to "get more noise". Removing the packing will result in a loss of power, discoloration of the finish on the muffler, and potential failure of the mechanical portion of the core.

END CAP & DISC INSTALLATION

1. Stand the muffler on the bench with the outlet end pointing up.
2. Place the appropriate amount of discs and end cap on the outlet of the muffler. The flat surface of the discs should be against the core with the outer lip angled away from the muffler. Align the (6) screw holes with the threaded inserts in the muffler outlet. (SEE DIAGRAM)
   
3. Insert the screws through the end cap and discs and into the threaded inserts in the muffler outlet. (SEE DIAGRAM)
4. Tighten the screws evenly in a cross pattern, SEE DIAGRAM. 4" discs should be tightened to 15-25 in/lbs and 5" discs to 40-50 in/lbs or once the screw head contacts the end cap tighten 2 full turns.

Documents / Resources

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download SuperTrapp SuperMeg 2:1 - Chrome Installation Manual