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How to Install aFe Mach Force-XP Stainless CatBack System on your Ford Mustang

Shop Parts in this Guide


MAKE: Ford
MODEL: Mustang EcoBoost
YEAR: 2015-2016
ENGINE: I4-2.3L (t) 

Cat-Back Exhaust
Stainless Steel

49-33084-P (Polished Tip)
49-33084-B (Black Tip)

Professional installation is highly recommended. (Read instructions prior to installation). Make sure to always have at least (2) stands or jacks on hand to support the removal of OE system. Also for the installation of aFe system. Any Removal of rubber isolation mounts may require using a spray lubricant such as WD40 and a pry bar.

Step 1: (Read Instructions prior to installation) for faster removal and installation of exhaust a trained professional is recommended for this procedure.

Step 2: Secure stock exhaust with jack/stands.

Step 3: Disconnect negative battery terminal.

Step 4: Loosen clamp and release the tab and slide the clamp back on the muffler. Seperate the muffler and downpipe.

Step 5: Remove the LH & RH rear exhaust hanger isolator bracket bolts from the rear subframe.

Step 6: Unhook the rear exhaust hanger isolators and remove the exhaust from the downpipe.

Step 7: Install aFe exhaust using the hardware provided.

Step 8: Install Y-Pipe Extension to the stock system. NOTE: 3" Inlet/Oulet connection pipes mount directly to the aFe Performance Downpipe (P/N: 48-33017) for a Full 3" system.

Step 9: Install Mid Y-Pipe using the 3" band clamp. Do NOT tighten.

Step 10: Install RH & LH hanger bracket isolator bolts to the right and left muffler.

Step 11: Install the Right muffler using 2.5" band clamp. Do NOT tighten.

Step 12: Install the Left muffler using 2.5” band clamp. Do NOT tighten.

Step 13: Adjust exhaust before tightening.

Step 14: Once aligned and you’re satisfied, you may now tighten complete system.

Step 15: Reconnect battery.

Step 16: Start the vehicle and check for any leaks.

Step 17: Double check all work and ensure everything is tight and secure.

Step 18
: Your installation is now complete. It is recommended to re-tighten all exhaust components after 50-100 miles. 


Allow time for your vehicle to cool down prior to installation. When working on or under your vehicle proceed with caution. Exhaust systems reach high temperatures and may cause serious burns. Wear protective safety equipment; eye goggles and gloves to ensure a safe installation. aFe recommends professional installation on our products.

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