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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-718156
718156 Flow FX Cat-Back Exhaust System; Fits Select Toyota; Tundra 3.4-Liter, Cat-Back, Single Side Exit
$84995
Ships on Sep 11, 2026
Lowest Price GuaranteeFlow FX Cat-Back Exhaust SystemFits Select Toyota; Tundra 3.4-Liter, Cat-Back, Single Side Exit Sold Individually
Flowmaster 389-718156 Features:
This Flowmaster® FlowFX® cat-back exhaust system for the 2022-2024 Toyota Tundra trucks with the 3.4-liter engine is manufactured using durable 409 stainless steel throughout and features dual 2.50-inch dual inlet and 3.00-inch single exit mandrel bent pipes for better exhaust gas flow. A FlowFX "straight-through" muffler is used for a moderate sound level and maximum performance over the stock muffler. Dyno increases of 11 hp and 12 lbs-ft over stock measured at the rear wheels. This system exits out the side, behind the rear wheel with a 4.50-inch black ceramic tip for added style and a custom look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home. Backed by Flowmaster's Lifetime Limited Warranty.- Dual 2.50-inch and 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximize exhaust flow and improves durability
- A 4.50-inch black ceramic coated tip exits out the side for a custom look
- Includes complete hardware and factory styled hangers in the stock locations for an easy installation
- FlowFX series performance muffler delivers a deep, moderate performance tone and improves exhaust flow for better performance over the stock muffler
- Flowmaster’s Lifetime Limited Warranty
- Gain up to 11 hp and 12 lbs-ft of torque at the rear wheels
Part TypeExhaust System
BrandFLOWMASTER
Package Height14.0
Package Width15.0
Package Length49.0
Weight61.0 PG
Muffler Inlet Inside Diameter2.50 in.
Hangers IncludedYes
Main Piping Diameter3 in.
Tail Pipe QuantitySingle
Inlet TypeFlanged
Exhaust Tip Material304 Stainless Steel
Catalytic Converter Quantity0
Muffler Body Length18 in.
Sound LevelModerate/Mild
Muffler Body Material409 Stainless Steel
Exhaust Tip CutAngled
Gasket Or Seal IncludedNo
Exhaust Tip IntercooledNo
Pipe ColorSilver
Muffler Quantity1
Muffler Inlet Outside Diameter2.63 in.
Muffler Flanged OutletNo
Exhaust Tip ResonatedNo
Muffler Outlet LocationCenter
Catalytic Converter IncludedNo
Part CategoryPerformance Parts
Exhaust Tip WallSingle Wall
Exhaust Tip Quantity1
Muffler Inlet LocationDual
Exhaust Tip FinishBlack Ceramic Coating
Exhaust Tip EdgeRolled Edge
Valve IncludedNo
Muffler TypeAbsorption
Pipe Material409 Stainless Steel
Muffler Body Width9 in.
Tail Pipe Tapered OutletNo
Muffler Body ShapeOval
Mounting Bracket IncludedNo
Muffler Outlet Quantity1
Muffler FinishNatural
Mount TypeUses Factory Hangers
Clamps IncludedYes
FinishNatural
Exit StyleSingle Out Side
Muffler Body Height4 in.
Clamping TypeFlat Band
Muffler Flanged InletNo
Spring Bolt Kit IncludedNo
Muffler SeriesFlow FX
Muffler IncludedYes
Exhaust Tip ConnectionClamp-On
Tail Pipe Outlet Outside Diameter3 in.
Valve TypeNot Applicable
Exhaust Tip Diameter4.50 in.
Part FitmentDirect Fit
Vendor Part Number718156
Package Qty1
Package TypeEA
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