Flowmaster's manifold downpipe kits are designed for the person who wants to use 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.
Features:
Pipes designed to be used without heat riser
Chevrolet Big Block, GM A-Body, B-Body and F-Body
2.50 in. manifold downpipe
Mandrel bent 16 gauge stainless steel tubing
Specs
Brand
Flowmaster
California Proposition 65 Chemical Name
Chromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 Required
Yes
Emission Code
3
Material
Stainless Steel
Material Gauge
16
Product Type
Exhaust Accessories
Single Dual
Dual
System Type
Downpipe Kit
Tubing Diameter (in)
2.5
Part Number
81071
Emissions
This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
1965 and older U.S. manufactured California Certified vehicles
1967 and older U.S. manufactured Federally Certified vehicles
1967 and older Foreign manufactured vehicle
The following vehicles are considered Racing Use Only Vehicles:
Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street
WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
The following vehicles are considered Emissions Controlled Vehicles:
1966 and newer U.S. manufactured California Certified vehicles
1968 and newer U.S. manufactured Federally Certified vehicles