How to Install Borla Touring Cat-Back Exhaust - Split Rear Exit (04-08 4.6L) on your Ford F-150

Note: With a used vehicle, we suggest a penetrating spray lubricant to be applied liberally to all exhaust fasteners and allowing a significant period of time for the chemical to lubricate the threads before attempting to disassemble.

1. Unbolt the clamp shown in figure 1 located in front of the muffler assembly.

2. Lubricate all hangers and rubber isolators.

3. Using a muffler stand or an additional person to hold the exhaust system up in place, remove the hangers from the rubber isolators and remove the exhaust system from the vehicle as shown in figure 2.

Warning: Use extreme caution during installation. Torque all fasteners according to manufacturer’s torque values and tightening sequence. DO NOT use air impact tools to tighten fasteners on Borla Performance Exhaust Systems. Use of such tools may result in bent flanges or gasket contact areas leading to exhaust leaks.

1. Place front pipe in position as shown in figure 3 installing the hanger into the rubber bracket.

2. Place a clamp over the expanded end of the muffler and set it into position as shown in figure 4. DO NOT tighten the clamp.

3. Place a clamp over the expanded end of both left and right over axle pipes and set them into position as shown in figure 5 installing the hanger on the left over axle pipe into the rubber bracket. DO NOT tighten the clamps.

4. On both driver’s side and passenger’s side of vehicle, remove the lower nut from the spring perch and install each hanger/bracket assembly as shown in figure 6. Install the original hardware and tighten to the vehicle manufacturer’s recommended torque value. Install rubber isolators supplied with your system onto each hanger/bracket assembly.

5. Place a clamp over the expanded end of the intermediate pipe and set it into position as shown in figure 7. DO NOT tighten the clamp.

6. Place a clamp over the expanded end of the both left and right tail pipe assemblies and set them into position as shown in figure 8 installing the hangers into the rubber isolators. DO NOT tighten the clamps.

7. Check your exhaust system for proper clearance under the vehicle and also for tip alignment.

8. Once position has been determined to be correct, tighten the Accuseal clamps to 32-35 ft. lbs.

9. Before starting your vehicle, make sure to check all wires, hoses, brake lines, body parts and tires for safe clearance from the exhaust system.

10. Start vehicle and check for any leaks. If any leaks are found, determine cause (such as loose or incorrectly positioned clamp) and repair as necessary.

Note: When you first start your vehicle after the installation of your new Borla Performance Exhaust System, there may be some smoke and fumes coming from the system. This is a protective oil based coating used in the manufacturing of mandrel bent performance exhaust tubing. This is not a problem and will disappear within a very short period of time after the exhaust has reached normal operating temperatures.