1. | Open exhaust shield clamps. Remove original equipment (OE) muffler shields. Note the position of the clamps and save for installation. | |
2. | Kits 64901192, 649001193: Remove O2 sensors from Original Equipment (OE) mufflers. See service manual. | |
3. | Remove screws and washers that attach the muffler to the support bar. | |
4. | Loosen muffler clamps and remove OE mufflers. Discard mufflers, gaskets and clamps. Install new exhaust gaskets and muffler clamps (sold separately) onto mufflers. Do not tighten clamps now. | |
5. | Install the mufflers to the exhaust pipes. Do not fully tighten the muffler clamps now. NOTE The mufflers are position specific on some models. Install the mufflers with the rivets facing towards the tire. Also, confirm the front and rear muffler part number, and verify muffler rotation by comparing the end cap screw orientation of the two mufflers. | |
6. | Apply Loctite 242 threadlocker to the muffler mounting screws and install the muffler mounting screws. Tighten Torque: 13.6–16.3 N·m (10–12 ft-lbs) | |
7. | Kits 64901192, 649001193: Install new gaskets (11936) onto O2 sensors previously removed into new muffler. Torque: 16–19 N·m (12–14 ft-lbs) | |
8. | Align the clamps. Tighten. Torque: 51.2–58.3 N·m (38–43 ft-lbs) | |
NOTICE Wipe all fingerprints off of exhaust system components after installation and before starting engine. Oil from hands can leave permanent marks on exhaust system finish. (00346a) | ||
9. | Install the OE muffler shields band clamps. Tighten. Torque: 2.3–4.6 N·m (20–41 in-lbs) |
1 | Screw (4) |
2 | Interconnect bracket |
3 | Exhaust gasket (2) |
4 | Muffler clamp (2) |
5 | Exhaust pipe |
6 | Shield clamp (4) |
7 | Front shield |
8 | Rear shield |
9 | Muffler (2) |
1 | Rear shield |
2 | Interconnect bracket screw |
3 | Interconnect bracket |
4 | Interconnect bracket screw |
5 | Exhaust pipe |
6 | Muffler clamp (2) |
7 | Exhaust gasket (2) |
8 | Shield clamp (4) |
9 | Front shield |
10 | Muffler (2) |
Item | Description (Quantity) | Part Number |
---|---|---|
1 | Domestic shorty dual muffler kit | 64900636 |
HDI shorty dual muffler kit | 64900638 | |
Domestic shotgun dual muffler kit | 64900690 | |
HDI shotgun dual muffler kit | 64900691 | |
Muffler, short, chrome (2) | 64901196 | |
Muffler, long, top, chrome | 64901197 | |
Muffler, long, bottom, chrome | 64901198 | |
Items mentioned in text, but not included in kit. | ||
A | Clamp, muffler (2) | 65900012 |
B | Gasket, exhaust (2) | 65900017 |