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Flowmaster dBX Cat-back Exhaust System

2005-2012 Toyota Tacoma with 4.0L engine.

Part # 819144 Be the first to write a review
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The Flowmaster® dBX® exhaust system is for 2005-2012 Toyota Tacoma models with the 4.0L engine. The all mandrel-bent stainless steel system consists of a flanged 2.50-inch head pipe flowing into a 2.50-inch inlet dBX performance muffler that utilizes our race proven Laminar Flow technology. The dBX muffler exits with a 3.00-inch outlet flowing into the large 3.00-inch tailpipe, exiting out the passenger side behind the rear tire. The tailpipe is finished off with a large 3.50-inch polished stainless steel tip and the system includes all the necessary parts, hardware and easy to follow instructions. As a dBX system, it will typically produce a moderate interior sound level with an aggressive exterior sound level that is well suited to enthusiast type drivers. Note: Fits all wheelbases except Std cab or X-Runner models.


  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16 Gauge Stainless Steel Tubing
  • Connects After Factory Catalytic Converter
  • Stainless Steel Muffler Assembly
  • Moderate Exterior Exhaust Tone
  • Lifetime Limited Warranty
  • Easy Installation

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.

Brand Flowmaster
Emission Code5
Exhaust SeriesdBX Series
Exit PositionSingle Side Exit
Heat ShieldNo
Inlet Diameter (in)2.5
Material409 Stainless Steel
Muffler Part NumberKit Only
Muffler Quantity1
Muffler SeriesdBX Series
Outlet Diameter (in)3
Product TypeExhaust System
Sound LevelModerate
System TypeCat-back
Tip Diameter (in)3.5
Tip Quantity1
Tubing Diameter (in)3
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number819144

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.

Fits 2005-2012 Toyota Tacoma with 4.0L engine. All wheelbases except Standard Cab and X-Runner models.

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