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MagnaFlow Sys CB 66-72 GM CST-10/CST-20

SKU: MAG16643

Exhaust Systems

MAG Catback Exhaust...

MagnaFlow Sys CB 66-72 GM CST-10/CST-20

SKU: MAG16643

Exhaust Systems

MAG Catback Exhaust...

A$2,621.04
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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Description

The MagnaFlow Street Series Crossmember-Back Performance Exhaust System 16643 brings enhanced engine sound and dyno-proven performance to your 3.8L, 4.1L, 4.3L, 4.6L, 4.8L, 5.0L, 5.3L, 5.7L, 6.5L, 6.6L 1960-1972 Chevrolet with a healthy helping of our deep, resonant signature exhaust note at Aggressive exterior and Moderate interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this Chevrolet exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your Chevrolet's exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear Behind Rear Tires exit that you can enhance with tips of your choosing, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 16643 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow's limited lifetime construction warranty.

Product Overview

The MagnaFlow Street Series Crossmember-Back Performance Exhaust System 16643 brings enhanced engine sound and dyno-proven performance to your 3.8L, 4.1L, 4.3L, 4.6L, 4.8L, 5.0L, 5.3L, 5.7L, 6.5L, 6.6L 1960-1972 Chevrolet with a healthy helping of our deep, resonant signature exhaust note at Aggressive exterior and Moderate interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this Chevrolet exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your Chevrolet's exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear Behind Rear Tires exit that you can enhance with tips of your choosing, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 16643 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow's limited lifetime construction warranty.


Features and Benefits

  • Durable Corrosion-Resistant Stainless Steel Construction
  • CNC Precision Robotic Manufacturing Techniques
  • Dyno-Proven Performance

Product Details

Anticipated Ship Out Time:Approximately 1-2 Days
Attachment Style:Weld-On
Attachment Type:Weld-On
Catalytic Converter Quantity:0
Clamp Type:Band Clamp
Clamping Type:Band Clamp
Clamps Included:Yes
Color/Finish:Stainless
Components:Band Clamp=8
Description:Street Series Stainless Crossmember-Back System
Exhaust Inlet Connection Type:Weld-On
Exhaust Pipe Material:Stainless
Exhaust Tip Quantity:0
Exhaust Type:Dual
Exit Location:Dual Split Rear Behind Rear Tires
Exit Position:Dual Split Rear Behind Rear Tires
Exit Quantity:Dual
Exit Style:Dual Split Rear Behind Rear Tires
Finish:Stainless
Gasket Included:No
Gasket Or Seal Included:No
Hangers Included:Yes
Inlet Connection Type:Weld-On
Inlet Inside Diameter:2.500 in.
Inlet Type:Weld-On
Main Piping Diameter:2.500 in.
Material:Stainless
Mounting Bracket Included:No
Muffler Body Diameter:4.000 in. x 9.000 in.
Muffler Body Finish:Polished
Muffler Body Height:4.000 in.
Muffler Body Length:18.000 in.
Muffler Body Material:Stainless Steel
Muffler Body Shape:Oval
Muffler Body Width:9.000 in.
Muffler Count:2
Muffler Finish:Brushed
Muffler Material:Stainless Steel
Muffler Quantity:2
Muffler Type:Straight-Through
Outlet Outside Diameter:2.500 in.
Part Number:mag16643
Pipe Material:Stainless Steel
Prop 65 Y/N:No
Recommended Use:Performance
Series:Street
Sound Level:Moderate
Subtitle:Crossmember-Back Performance Exhaust System
Subtitles:Crossmember-Back
System Type:Crossmember Back
Tail Pipe Diameter:2.500 in.
Tip Diameter:No Tip
Tip Quantity:0
Title:MagnaFlow Street Series Crossmember-Back Performance Exhaust System 16643
Tubing Diameter:2.500 in.
Type:Crossmember-Back
Valve Included:No
Valve Type:None
WARNING CA Proposition 65:No
Warranty:Lifetime

Part Type

Exhaust System Kit

Data: v4.2 - Upd: 2026-10-17 20:10:44

Features

  • CNC Precision Robotic Manufacturing Techniques
  • Durable Corrosion-Resistant Stainless Steel Construction
  • Dyno-proven performance

Specifications

Product Attributes - Brand
MagnaFlow
Product Attributes - Manufacturer's Part Number
16643
Product Attributes - Part Type
Exhaust Systems
Product Attributes - Product Line
MagnaFlow Street Series Performance Exhaust Systems
Product Attributes - UPC
841380019349
Product Attributes - System Material
409 stainless steel
Product Attributes - System Style
Crossmember back
Product Attributes - Exhaust Type
Dual
Product Attributes - Exit Location
Split side
Product Attributes - System Finish
Natural
Product Attributes - Catalytic Converter(s) Included
No
Product Attributes - Intermediate Pipe Diameter (in.)
2.50 in.
Product Attributes - Muffler Included
Yes
Product Attributes - Muffler Quantity
Two
Product Attributes - Muffler Configuration
Single inlet/Single outlet
Product Attributes - Muffler Style
Perforated tube with packing
Product Attributes - Muffler Material
409 stainless steel
Product Attributes - Muffler Finish
Polished
Product Attributes - Hardware Included
Yes
Product Attributes - Tailpipe Diameter (in.)
2.50 in.
Product Attributes - Tip Included
No
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Depending on vehicle configuration, some modifications may be required. See installation instructions for details, if applicable. Kit includes polished mufflers and Tru-X pipe. Designed to work with original style exhaust manifolds or tubular headers.
Product Attributes - Special Attention
It is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards.

Reference Information

Brand Name/s Magnaflow
StreetFX SKU mag16643
SFX Item ID 4284727
Supplier Item Code 4284727
Manufacturer SKU 16643
Manufacturer UPC 841380019349
Alternative References mpe-16643, MFL16643, CST-10/CST-20

Compatibility

Application Data
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1960
    Ending Year1961
    Engine TypeV8
    Liter5.7
    CID348
    CC5704
    Engine Size5.7L/348
    Engine FamilyChevy big block W-engines
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1960
    Ending Year1962
    Engine TypeL6
    Liter3.8
    CID235
    CC3852
    Engine Size3.8L/235
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1960
    Ending Year1963
    Engine TypeV8
    Liter4.6
    CID283
    CC4638
    Engine Size4.6L/283
    Engine FamilyChevy small block Gen I
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1961
    Ending Year1962
    Engine TypeL6
    Liter4.3
    CID261
    CC4278
    Engine Size4.3L/261
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1963
    Ending Year1963
    Engine TypeL6
    Liter3.8
    CID230
    CC3769
    Engine Size3.8L/230
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1963
    Ending Year1964
    Engine TypeL6
    Liter4.8
    CID292
    CC4801
    Engine Size4.8L/292
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1965
    Ending Year1966
    Engine TypeL6
    Liter3.8
    CID230
    CC3769
    Engine Size3.8L/230
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Liter4.6
    CID283
    CC4638
    Engine Size4.6L/283
    Engine FamilyChevy small block Gen I
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeL6
    Liter4.1
    CID250
    CC4097
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeL6
    Liter4.1
    CID250
    CC4098
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeL6
    Liter4.8
    CID292
    CC4801
    Engine Size4.8L/292
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeV8
    Liter5.3
    CID327
    CC5358
    Engine Size5.3L/327
    Engine FamilyChevy small block Gen I
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1967
    Engine TypeL6
    Liter4.1
    CID250
    CC4097
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1967
    Engine TypeL6
    Liter4.1
    CID250
    CC4098
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1967
    Engine TypeV8
    Liter4.6
    CID283
    CC4638
    Engine Size4.6L/283
    Engine FamilyChevy small block Gen I
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1966
    Ending Year1969
    Engine TypeV8
    Liter5.3
    CID327
    CC5358
    Engine Size5.3L/327
    Engine FamilyChevy small block Gen I
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1967
    Ending Year1969
    Engine TypeL6
    Liter3.8
    CID230
    CC3769
    Engine Size3.8L/230
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1967
    Ending Year1969
    Engine TypeL6
    Liter4.8
    CID292
    CC4801
    Engine Size4.8L/292
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1968
    Ending Year1968
    Engine TypeV8
    Liter5.3
    CID327
    CC5358
    Engine Size5.3L/327
    Engine FamilyChevy small block Gen I
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
    Engine VIN CodeE
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeL6
    Liter3.8
    CID230
    CC3769
    Engine Size3.8L/230
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
    Engine VIN CodeS
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeL6
    Liter4.1
    CID250
    CC4097
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
    Engine VIN CodeP
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeL6
    Liter4.8
    CID292
    CC4801
    Engine Size4.8L/292
    Engine FamilyGM inline 6-cylinder
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
    Engine VIN CodeS
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeV8
    Liter5.0
    CID307
    CC5031
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
    Engine VIN CodeE
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeV8
    Liter6.5
    CID396
    CC6489
    Engine Size6.5L/396
    Engine FamilyChevy big block Mark IV
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
    Engine VIN CodeE
  • UniversalNo
    MakeCHEVROLET
    ModelC10 PICKUP
    SubmodelBASE
    Beginning Year1968
    Ending Year1969
    Engine TypeV8
    Liter6.5
    CID396
    CC6489
    Engine Size6.5L/396
    Engine FamilyChevy big block Mark IV
    Body StyleU/K
    Application NotesDual Split Rear Behind Rear Tires Exit; For Vehicles With Rear Coil Springs
    Engine VIN CodeY

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