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How to install a Bassani Catted X-pipe on your 2005-2009 GT Mustang

Installation Time

2 hours


Installation instructions:

1. Raise and support vehicle.

2. Lubricate factory crossover pipe hangers slip exhaust manifold outlet flange fasteners and crossover outlet band clamp fasteners with penetrating oil.

3. Remove fasteners from muffler hanger brackets at rear of vehicle to allow mufflers to hang free from vehicle.

4. Loosen fasteners on band clamps that attach factory H-pipe to over-axle pipes.

5. Move over-axle pipes and mufflers rearward and out of band clamps at H-pipe connection.

6. Carefully remove oxygen sensors from stock H-pipe.

7. Remove fasteners from exhaust manifold outlet flanges.

8. Move H-pipe rearward and out of factory rubber hanger brackets; remove H-pipe from vehicle.

9. Position two supplied 2-1/2”clamps over inlets of Bassani/BX X-pipe then install catalytic (or converter eliminators) into converter slip connectors.

10. Position two supplied 2-1/2”clamps over converter inlets and install inlet legs into converters. The leg with the oxygen sensor bung is to be installed on the passenger side of X-pipe.

11. Position two remaining 2-1/2”clamps over outlets of X-pipe and install X-pipe assembly into factory rubber hangers and attach to factory manifolds with factory nuts.

12. Re-install over-axle intermediate pipe and mufflers in their original locations.

13. Re-install oxygen sensors in their original locations.

14. Align all components and tighten all clamps.

15. Start vehicle and check for leaks; readjust system or clamps if needed.

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