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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-738173
738173 Signature Series Cat-Back Exhaust System Fits Select Toyota Tacoma 2.4L, 2WD/4WD, All Wheelbases
$1,49995
Ships on 09/15/2026
Lowest Price GuaranteeToyota
Signature Series Cat-Back Exhaust SystemFits Select Toyota Tacoma 2.4L, 2WD/4WD, All Wheelbases 2.5 in. Tubing Dual Out Rear Exit Signature Series Muffler 4 in. Black Chrome Tips Moderate Sound Stainless Steel Natural Finish
Flowmaster 389-738173 Features:
Flowmaster’s Signature Series Cat-Back Exhaust System is engineered for Toyota Tacoma trucks equipped with the 2.4L engine and built entirely from premium brushed 304 stainless steel for exceptional strength, corrosion resistance, and long-term durability. A 3.00 in. mandrel-bent inlet pipe feeds into a straight-through Signature Series muffler, designed to improve exhaust flow, sharpen throttle response, and deliver the deep performance tone the Signature Series is known for. Hand-crafted TIG welding provides clean, precise welds that enhance both durability and appearance. Dual 2.50 in. mandrel-bent tailpipes exit at an angle behind the rear driver-side wheel, routing exhaust away from trailers, boats, or equipment during towing. The system is completed with dual 4.0 in. PVD-coated black chrome 304 stainless steel tips, giving the Tacoma a bold, custom look that complements its upgraded exhaust note. Dyno-proven gains of up to 11 hp and 17 lb-ft at the rear wheels further elevate performance. Installation is straightforward using factory hanger locations along with an included additional hanger for the new left-side tailpipe, plus detailed instructions and all necessary hardware. Fits 2WD and 4WD models across all wheelbases.- 3.0 in. and 2.5 in. mandrel-bent 304 stainless steel tubing increases exhaust velocity and long-term durability
- PVD-coated black chrome stainless steel tips deliver a high-end, custom appearance
- Factory-style hangers and complete hardware kit allow a simple, direct bolt-on installation
- Straight-through Signature Series muffler produces a deep, aggressive-to-moderate performance tone
- Dyno-tested gains of up to 11 hp and 17 lb-ft compared to the stock exhaust system
- Brushed stainless finish removes tooling marks for a cleaner, more refined appearance
- Hand TIG-welded construction improves heat control and provides upscale, precision weld quality
- Includes Flowmaster’s Lifetime Limited Warranty
- Tuned exhaust note enhances sound quality both inside and outside the truck
Part TypeExhaust System
BrandFLOWMASTER
Package Height11.25
Package Width16.25
Package Length58.5
Weight83.0 PG
Tailpipe Diameter (In.)2.5
Muffler Inlet Inside Diameter3 in.
Hangers IncludedYes
Main Piping Diameter2.50 in.
Tail Pipe QuantityDual
Inlet TypeFlanged
Exhaust Tip Material304 Stainless Steel
Catalytic Converter Quantity0
Exit LocationDual Out Rear
Inlet QuantityOne
Muffler Body Length18 in.
Sound LevelModerate
Muffler Body Material304 Stainless Steel
Exhaust Tip CutAngled
Gasket Or Seal IncludedNo
Exhaust Tip IntercooledNo
Pipe ColorSilver
System FinishNatural
Muffler Quantity1
Muffler Inlet Outside Diameter3.13 in.
Exit QuantityDual
Muffler Flanged OutletNo
Tip Quantity2
Exhaust Tip ResonatedNo
Muffler Outlet LocationDual
Exhaust TypeCat-Back
Catalytic Converter IncludedNo
Part CategoryPerformance Parts
Hardware IncludedYes
Exhaust Tip WallDouble Wall
Exhaust Tip Quantity2
Muffler Inlet LocationCenter
Exhaust Tip FinishBlack Chrome
Exhaust Tip EdgeAngle Cut
Valve IncludedNo
Muffler TypeAbsorption
Pipe Material304 Stainless Steel
Muffler Body Width10 in.
Tail Pipe Tapered OutletNo
Muffler Body ShapeOval
Mounting Bracket IncludedYes
Muffler Outlet Quantity2
Muffler FinishNatural
Mount TypeUses Factory Hangers
Clamps IncludedYes
Muffler StyleSignature Series
FinishNatural
Exit StyleDual Out Rear
Muffler Body Height5 in.
Tip IncludedYes
Clamping TypeFlat Band
Muffler Flanged InletNo
Spring Bolt Kit IncludedNo
Muffler SeriesSignature Series
QuantitySold as a Kit
Muffler IncludedYes
Exhaust Tip ConnectionClamp-On
System StyleCat-Back
Tail Pipe Outlet Outside Diameter2.50 in.
Muffler ConfigurationSingle inlet/Dual outlet
System Material409 Stainless Steel
Valve TypeNot Applicable
Intermediate Pipe Diameter2.5 in (63.5 mm)
Exhaust Tip Diameter4 in.
Part FitmentDirect Fit
Vendor Part Number738173
Package Qty1
Package TypeEA
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