MUFF 21-26 F-150 DF

This Flowmaster® Flow FX Direct-Fit Muffler system for the 2021-2026 Ford F-150 trucks with the 2.7, 3.5 or 5.0-liter engines is manufactured using durable 409 stainless steel throughout and features 3.00-inch mandrel bent pipes for optimum exhaust gas flow. A Flowmaster Flow FX Series muffler is used for an aggressive to moderate sound level and maximum performance. Performance increases on the dyno revealed an increase of 18 hp and 14 ft/lbs. at the rear wheels. This system connects directly to the factory dual tail pipes and uses all the existing factory hangers. Includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's One (1) Year Limited Warranty.

Additional Information

Fits 2021-2026 Ford F-150 with 2.7, 3.5 and 5.0-liter non-PowerBoost engines with factory dual tailpipes

• 409 stainless steel constuction for extra durability
• Connects directly to the factory dual tailpipes for a simple installation
• Flow FX straight through design offers a deep powerful sound
• Flowmaster Flow FX series muffler offers increased performance
• Large 3.00-inch Mandrel bent pipes for superior flow and power
• Max power gains of 18 hp and14 lb-ft at the rear wheels
• One (1) Year Limited Warranty

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Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information