F150online Forums - Flowmaster's American Thunder Cat-Back for 04-08 Ford F-150's and Lincoln Mark LT's

Part #817417 or Part # 17417

2004-2008 Ford F-150 / Lincoln Mark LT Flowmaster Stainless Cat-Back Exhaust System 817417 17417 - YouTube

Application:

2004 to 2008 Ford F-150 and Lincoln Mark LT truck with a 4.6L or 5.4L engine, fits 2 and 4 wheel drive models and all wheelbases.

Attachment 38571

Features:

For the person who is looking for a complete Cat-back dual exhaust system with a moderate to aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior sound level, and are suited to customers looking for efficiency improvements with a sound that will let people know you're coming. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.

Attachment 38572

✓ Mandrel bent 16 gauge 409 stainless tubing
✓ Moderate exterior exhaust tone
✓ Includes hangers and hardware for easy installation
✓ Dyno tuned for maximum performance
✓ Premium Flowmaster quality