Ford F-150 Performance Exhaust - Rear + Side - Flowmaster - American Thunder Cat-Back - Polished - '21-'26. A stainless steel cat-back delivering a deep, powerful tone with polished tips and your choice of rear or side exit.

Built from mandrel-bent 409 stainless with a Super 40 Series muffler and Delta Flow technology, this kit boosts flow, refines tone, and helps cut drone. A 3.0 in inlet feeds dual 2.5 in tailpipes; 3.5 in polished tips complete the look. Hardware is included, factory hangers are used, and the spare clears for straightforward install. Fits 2021–2026 F-150 2.7L, 3.5L EcoBoost, and 5.0L, 2WD/4WD. Not for regular cab 6.5 ft bed, PowerBoost hybrid, or OEM active exhaust. Lifetime Limited Warranty. Max dyno gains recorded: 11 hp/10 lb-ft at the wheels.

Features

• American Thunder cat-back with dual rear or side exit
• Super 40 Series muffler with Delta Flow
• 409 stainless, mandrel-bent tubing
• 3.0 in inlet, dual 2.5 in tails, 3.5 in polished tips
• Uses factory mounts; includes hardware; clears spare
• Tested gains up to 11 hp and 10 lb-ft
• Fits 2021–2026 F-150 2.7L/3.5L/5.0L (exclusions apply)
• Lifetime Limited Warranty

Ready to fine-tune your F-150? Call to confirm fitment or schedule installation at our Austin, TX or Los Angeles, CA area shops: 512-982-9393 (TX) or 562-981-6800 (CA). We offer professional installation and customization.

Considering multiple items? Contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov