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Vehicle Info NeededFLOWMASTERPART NUMBER: 389-81071
Manifold Downpipe Kit Big Block Chevy A/B/F/X-Body
Color:
$25995
Ships on Sep 04, 2026
Lowest Price GuaranteeBig Block Chevy
Manifold Downpipe KitBig Block Chevy 1965-1969 Chevy B-Body 1965-1973 Chevy A-Body 1967-1972 Chevy F-Body 1968-1973 Chevy X-Body
FLOWMASTER MUFFLERS 81071 Features:
This Flowmaster manifold downpipe kit is specifically for 1965-1974 Chevelle/El Camino, 1967-1972 Camaro, 1968-1969 Nova, 1968-1970 Caprice/Impala/Bel Air and 1970-1974 Monte Carlo all with BBC engines. They are designed for the person who wants to use a Headers-back exhaust system while retaining the factory exhaust manifolds instead of headers. Manufactured from 2.50-inch mandrel bent 409S stainless steel tubing and high quality flanges for a leak free fit and an easy installation. Fits factory Chevrolet BBC 3-bolt manifolds. Includes donut gasket and donut sleeves.- Fits Chevrolet Big Block Manifolds for GM A-Body, B-Body, F-body
- 2.50-inch Mandrel-bent 16 Gauge Stainless Steel Tubing
- Pipes Designed to be Used Without Heat Riser
- 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
Flowmaster's Exhaust Manifold Downpipes are designed for use with a Header-back exhaust system while using the factory exhaust manifolds. Utilizing mandrel bent 409S stainless steel tubing and high quality flange gaskets, Flowmaster's manifold downpipe kits are designed for the perfect leak free fit.
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Features:- Use with Factory Headers.
- Mandrel Bent Tubing.
- 16 Gauge 409S Stainless Steel Construction.
- Gaskets and Hardware Included.
- Sold In Pairs.
JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.
Part TypeExhaust Tubing
Product LineFlowmaster Exhaust Manifold Downpipes
BrandFLOWMASTER
Package Height10.0
Package Width15.5
Package Length50.0
Weight18.1 PG
Part CategoryPerformance Parts
Hardware IncludedYes
Tubing FinishNatural
ShapeDownpipe
Center Line RadiusN/A
Tubing MaterialStainless steel
Main Piping Diameter2.50 in.
Gauge16
Mounting Bracket IncludedNo
Gaskets IncludedYes
Leg/Straight LengthN/A
Inlet Attachment TypeBolt-On
Inlet Outside Diameter3 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.
Mandrel-BentYes
ColorSilver
System TypeDownpipe Kit
Quantity1 Pair
MaterialStainless Steel
Bend AngleN/A
Outlet Attachment TypeClamp-On
Outlet Inside Diameter2.37 in.
Inlet Inside Diameter2.87 in.
Flanged InletYes
Tubing Diameter2.50 in.
Part FitmentSemi Universal
Outside Diameter2.5 in (63.5 mm)
Catalytic Converter IncludedNo
Vendor Part Number81071
Package Qty1
Package TypeEA
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