How to Install Stainless Works Redline Cat-Back Exhaust w/ X-Pipe - Factory Connect (18-19 GT Fastback w/o Active Exhaust) on your Ford Mustang

1. Raise and support your vehicle using both a jack and jack stands, ramps or a lift. Be sure vehicle is off, parking break is set, and exhaust system is cool to the touch.

2. Loosen (1) 15mm bolt on each clamp at the connection point behind the transmission. These clamps will be used later if installing the cat back to the factory manifold.

3. Remove the (2) 13mm bolts from the rubber hangers located by the rear differential and remove from the subframe. Keep the bolts and hangers.

4. Remove the exhaust from the hangers and remove from vehicle. Hangers by the rear bumper, held in by (2) 13mm bolts, can be removed to make removal easier if needed. Recommended to have 2 people for this step.

5. Install H or X-pipe. If connecting to the factory manifold you will use the clamps previously removed. If connecting to performance headers you will use (2) of the 3” clamps provided.

6. Install the (2) 18” mid-pipes to the H or X-pipe using (2) 3” clamps.

7. Install driver and passenger side tailpipes using (2) 3” clamps, one for each side.

8. Install driver and passenger side mufflers into the rear hangers and onto the tailpipes using (2) 3” clamps, one for each side.

9. Reinstall the rubber hangers using the (2) 13mm bolts.

10. Tighten all clamps from front to rear keeping all pieces level while adjusting.

11. Check to make sure nothing is touching the exhaust as it will melt. 1⁄2” clearance is needed.

12. After driving the vehicle 10-20 miles check all clamps and make sure the exhaust system has not moved and still has 1⁄2” clearance.

13. Enjoy!

Installation Instructions provided by AmericanMuscle Customer