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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-718218
718218 Flow FX Direct Fit Muffler; Fits Select GM; Yukon, Yukon XL, Suburban 5.3L Factory Single (SOR) and Dual Exit (DOR)
$39995
Ships on 09/15/2026
Lowest Price Guarantee- Flow FX Direct Fit Muffler
- Fits Select GM; Yukon, Yukon XL, Suburban 5.3L Factory Single (SOR) and Dual Exit (DOR)
- Sold Individually
Flowmaster 718218 Features:
Your 5.3L feels a little too quiet for what it is, this is the upgrade that changes the experience without changing your routine. The Flow FX Direct Fit Muffler System delivers a deeper, more confident V8 tone with the simplicity and value of a direct fit replacement. It is the perfect first step for drivers who want a meaningful change without the complexity of a full system.
Part TypeMuffler
BrandFLOWMASTER
Package Height9.5
Package Width13.5
Package Length34.0
Weight16.0 PG
Part CategoryPerformance Parts
Muffler Material409 Stainless Steel
Gasket Or Seal IncludedNo
Muffler ShapeOval
ColorNatural
System TypeDirect-fit Muffler
Outlet Quantity1
Muffler SeriesFlow FX
Overall Length20.00
Inlet LocationOffset
Valve IncludedNo
Muffler TypeAbsorption
Material409 Stainless Steel
Inlet TypeSlip-Fit
Muffler Quantity1
Heat Shield AttachedNo
Inlet Inside Diameter3.26
Valve TypeNot Applicable
Mount TypeUses Factory Hanger
Outlet TypeSlip-Fit
Inlet Quantity1
Part FitmentDirect Fit
Sound LevelModerate/Mild
FinishNatural
Outlet Outside Diameter3.50
Vendor Part Number718218
Package Qty1
Package TypeEA
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