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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-81076
Manifold Downpipe Kit 1964-1966 Mustang 289 V8
$39995
Ships on Sep 04, 2026
Lowest Price GuaranteeFord
Manifold Downpipe Kit1964-1966 Mustang 289 V8 Inlet: 2" Outlet: 2.5"
FLOWMASTER MUFFLERS 81076 Features:
Flowmaster introduces our new manifold downpipes for 1964-1966 Ford Mustangs with 289 c.i. engine. These 2.50-inch mandrel-bent 409S stainless steel downpipes include the 2-bolt flanges, donut gaskets and donut sleeves. Designed to mate up with Flowmaster exhaust system #17273 or #817273. Covered by our Lifetime Limited Warranty.- Mandrel-bent 16 Gauge Stainless Steel Tubing
- To Adapt Exhaust to Factory Manifolds
- Large 2.50-inch Manifold Downpipes
- Stainless Steel Construction
- Lifetime Limited Warranty
- Flowmaster Quality
- Easy Installation
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Part TypeExhaust Tubing
BrandFLOWMASTER
Package Height10.0
Package Width17.5
Package Length38.0
Weight13.5 PG
Part CategoryPerformance Parts
ShapeDownpipe
Center Line RadiusN/A
Main Piping Diameter2.50 in.
GaugeOEM
Mounting Bracket IncludedNo
Leg/Straight LengthN/A
Inlet Attachment TypeBolt-On
Inlet Diameter2 in.
Clamps IncludedNo
Tube Size2.5 in (63.5 mm)
FinishNatural
Outlet Outside Diameter2.50 in.
Tube Diameter2.5 in (63.5 mm)
Hanger IncludedNo
Clamping TypeFlat Band
PositionN/A
Flanged OutletNo
Gasket Or Seal IncludedYes
Pipe Diameter2.50 in.
Outlet Diameter2.50 in.
ColorSilver
Quantity1 Pair
MaterialStainless Steel
Bend AngleN/A
Outlet Attachment TypeBolt-On
Outlet Inside Diameter2.37 in.
Inlet Inside Diameter2 in (50.8 mm)
Flanged InletYes
Tubing Diameter2.50 in.
Part FitmentSemi Universal
Heat Shield IncludedNo
Vendor Part Number81076
Package Qty1
Package TypeEA
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