Description
Exhaust System - Street Series - Header-Back - 2.5 in Diameter - Stainless - Natural - Chevy V8 - GM Fullsize Truck 1960-72 - Kit
MagnaFlow Sys CB 66-72 GM CST-10/CST-20
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.
Additional Information
Magnaflow Street Series Stainless Crossmember-Back System
Part Type
Exhaust System Kit
| Additional Application Notes | |
|---|---|
| • w/ Rear Coil Springs DUAL SPLIT REAR BEHIND REAR TIRES EXIT | |
| • With Rear Coil Springs DUAL SPLIT REAR BEHIND REAR TIRES EXIT | |
These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.
Features
- CNC Precision Robotic Manufacturing Techniques
- Durable Corrosion-Resistant Stainless Steel Construction
- Dyno-proven performance
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
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 |
| 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 |
| Warranty: | Lifetime |
Product Downloads
Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | Magnaflow, MagnaFlow Exhaust Products, MAGNAFLOW PERF EXHAUST, Magnaflow Performance |
| StreetFX SKU | mag16643 |
| SFX Item ID | 4284727 |
| Accounting SKU | mag-16643 |
| Manufacturer SKU | 16643 |
| Manufacturer UPC | 841380019349 |
| Alternative References | 16643, MFL16643, MPE-16643 |
Exhaust System, Crossmember-Back, Stainless Steel, Tru-X, Chevy, GMC, Pickup, RWD, Small Block, Kit
MagnaFlow Street Series performance exhaust systems deliver the smooth, deep sound you want—and the wide-open performance power you need! They feature straight-through flow designs for the ultimate in unrestricted horsepower and torque, while maintaining exhaust efficiency. These kits are an engineered balance of interior and exterior noise levels and are tested against SAE j1169 standards. Street Series components are built with 409 stainless steel and all mandrel-bent tubing. They're available in numerous configurations, including cat-back, rear axle-back, crossmember-back, and rear section; single, dual, tri, or quad turbo mufflers; and several outlet and tip options. Order the MagnaFlow Street Series performance exhaust tailored for your specific make and model. The systems carry a lifetime construction warranty.
| Product Attributes | |
|---|---|
| Brand | MagnaFlow |
| Manufacturer's Part Number | 16643 |
| Part Type | Exhaust Systems |
| Product Line | MagnaFlow Street Series Performance Exhaust Systems |
| UPC | 841380019349 |
| System Material | 409 stainless steel |
| System Style | Crossmember back |
| Exhaust Type | Dual |
| Exit Location | Split side |
| System Finish | Natural |
| Catalytic Converter(s) Included | No |
| Intermediate Pipe Diameter (in.) | 2.50 in. |
| Muffler Included | Yes |
| Muffler Quantity | Two |
| Muffler Configuration | Single inlet/Single outlet |
| Muffler Style | Perforated tube with packing |
| Muffler Material | 409 stainless steel |
| Muffler Finish | Polished |
| Hardware Included | Yes |
| Tailpipe Diameter (in.) | 2.50 in. |
| Tip Included | No |
| Remanufactured | No |
| Quantity | Sold as a kit. |
| 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. |
| 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. |
| Manufacturer Attributes | |
|---|---|
| Exhaust Tip Quantity | 0 |
| Catalytic Converter Quantity | 0 |
| Muffler Body Length | 18 |
| Muffler Quantity | 2 |
| Main Piping Diameter | 2.5 |
| Muffler Body Height | 4 |
| Muffler Body Width | 9 |
| Muffler Finish | Brushed |
| Exit Style | Dual Split Rear Behind Rear Tires |
| Gasket Or Seal Included | No |
| Valve Included | No |
| Mounting Bracket Included | No |
| Pipe Material | Stainless Steel |
| Muffler Body Material | Stainless Steel |
| Muffler Type | Straight-Through |
| Inlet Type | Weld-On |
| Clamps Included | Yes |
| Hangers Included | Yes |
| Clamping Type | Band Clamp |
| Series | Street |
| Title | MagnaFlow Street Series Crossmember-Back Performance Exhaust System 16643 |
| Type | Crossmember-Back |
| Manufacturer Designation | Street Series Stainless Crossmember-Back System |
| Product Class | Exhaust System Kit |
| Construction/Type | Magnaflow Street Series Stainless Crossmember-Back System |
| Product Outline | Durable corrosion-resistant stainless steel construction CNC precision robotic manufacturing techniques Dyno-proven performance |
| Vehicle Brief | Exhaust System |
| Market 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. |
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