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Flowmaster

Flowmaster Outlaw Extreme Cat-Back Exhaust System

2021 Ford F-150 2.7L, 3.5L and 5.0L Outlaw Extreme Stainless Steel 3.0" Cat-Back Exhaust System

Part # 818118
In Stock
Your Price
$299.95
Suggested Retail
$334.00
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Flowmaster introduces the new Outlaw Extreme stainless steel cat-back exhaust system for the 2021 Ford F-150 with the 2.7L, 3.5L, or 5.0L engine. This system uses an Outlaw series muffler for a deep powerful sound and increased performance. 3.0-inch mandrel bent 409 stainless steel tubing is used for maximum exhaust flow and durability. The system has a turndown style dump exit right after the muffler to eliminate the over-axle tailpipe. This elimination of the tailpipe helps to improve ground clearance and departure angle when you are driving in more extreme off-road situations. All of the necessary hardware is included and factory mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty.

Features:

  • Outlaw series performance muffler offers a deep powerful sound and increased performance
  • 409 stainless steel construction delivers extra durability and improved long-term corrosion resistance
  • Max dyno gains of 7 HP and 10 LB.FT torque over stock at the rear wheels
  • Uses factory hanger locations for easy installation
  • 3.0-inch 16-gauge mandrel bent stainless steel tubing helps maintain maximum exhaust flow for better power
  • Includes all necessary hardware for an at home installation
  • Dump style exit allows for better ground clearance when in extreme off-road conditions
  • Lifetime Limited Warranty

About Flowmaster

Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound.

BrandFlowmaster
Emission Code5
Exhaust SeriesOutlaw
Exit PositionSOD (Single Out Dump)
Inlet Tubing Diameter3.00
Mount TypeUses Factory Hangers
Muffler Body Length (in)10.5
Muffler ColorBlack
Muffler FinishPainted
Muffler Inlet Diameter (in)3.00
Muffler Inlet LocationCentered
Muffler Material409S Stainless Steel
Muffler Outlet Diameter (in)3.00
Muffler Outlet LocationCentered
Muffler Overall Length (in)44.1
Muffler Part NumberKit Only
Muffler Quantity1
Muffler SeriesOutlaw
Muffler ShapeRound
Muffler TypeReflection
Outlet Tubing Diameter3.00
Product TypeExhaust System
Single DualSingle
Sound LevelAggressive
System TypeCat-back
Tip CutTurndown
Tip Diameter3.00
Tip Edge StyleCut
Tip FinishN/A
Tip LogoN/A
Tip MaterialN/A
Tip ShapeN/A
Tip StyleNot Included
Tubing Material409S Stainless Steel
UPC090127130056
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number818118
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.

2021 Ford f-150 Trucks with 2.7L, 3.5L Ecoboost, 3.5L Ti-VCT and 5.0L engines. Fits 2 & 4-wheel drive, all wheelbases. Does not fit Raptor models.

*Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

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