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Flowmaster

Flowmaster Outlaw Direct Fit Muffler

Part # 818171 Be the first to write a review

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

Flowmaster Outlaw Direct Fit Muffler

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Advertised Price $460.95
$413.95
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This Flowmaster® Outlaw 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 Outlaw Series muffler is used for an aggressive sound level and maximum performance. Performance increases on the dyno revealed an increase of 16 hp and 21 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 Lifetime Limited Warranty.

Features:

  • Large 3.0-inch Mandrel bent pipes for superior flow and power
  • Flowmaster Outlaw series muffler offers race proven performance
  • Powerful exhaust note with an aggressive sound level that’s a perfect balance of sound and power
  • Max power gains of 16 hp and 21 lb-ft at the rear wheels
  • 409 stainless steel constuction for extra durability
  • Connects directly to the factory dual tailpipes for a simple installation
  • Lifetime limited Warranty
Body Height4.00 IN
Body Length6.50 IN
Body Material409 Stainless Steel
Body Width9.50 IN
Brand Flowmaster
CategoryExhaust
Clamping TypeFlat Band
Clamps IncludedYes
Emission Code5
Exhaust SeriesOutlaw
Exhaust Tip Quantity0
Sold Separately
Exhaust Tip StyleNot Included
Exit StyleOEM
FinishHigh-Temperature Paint
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Heat Shield AttachedNo
Inlet Inside Diameter2.75 IN
Inlet LocationCenter
Inlet Outside Diameter2.88 IN
Inlet Quantity1
Inlet TypeSlip-Fit
Main Piping Diameter3.00 IN
Material409 Stainless Steel
Mount TypeUses factory hangers
Muffler Body Length6.50 IN
Muffler ColorBlack
Muffler FinishBlack High-Temperature Paint Finish
Muffler Inlet Diameter3.00 IN
Muffler Inlet LocationCenter
Muffler Material409 Stainless Steel
Muffler Outlet Diameter3.00 IN
Muffler Outlet LocationDual
Muffler Overall Length12.20 IN
Muffler Part NumberKit Only
Muffler Quantity1
Muffler Series10 Series
Muffler ShapeOval
Muffler TypeChambered
Outlet Inside Diameter3.00 IN
Outlet LocationDual
Outlet Outside Diameter3.13 IN
Outlet Quantity2
Outlet TypeSlip-Fit
Overall Length55.20 IN
part typeExhaust Muffler Assembly
Pipe Material409 Stainless Steel
Product TypeExhaust System
Single DualDual
Sound LevelAggressive
Spring Bolt Kit IncludedNo
Sub CategoryMufflers
System TypeDirect-fit Muffler
Tubing Diameter3.00 IN
Tubing Material409 Stainless Steel
TypeDirect-fit Muffler
UPC090127846599
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number818171
5

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Instructions - 818171_instructionsV2.pdf
Instructions - Flowmaster Warranty 26 Update.pdf
This system replaces ONLY the Factory muffler and over axle pipes and reuses the factory dual tail pipes and tips. Does not fit PowerBoost hybrid models. Does not fit models with OEM active exhaust option.

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    *Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.

    Flowmaster Outlaw Direct Fit Muffler
    Flowmaster Outlaw Direct Fit Muffler
    Advertised Price $460.95
    $413.95
    Save $47.00