Description
Upgrade the exhaust system of your Mercedes-AMG C43 with the SPOOL Performance C43 Cat-Back Exhaust System, a complete 304 stainless steel cat-back exhaust engineered to replace the restrictive factory rear section while maintaining everyday drivability.
Featuring twin valved rear mufflers, the system retains full OEM-style exhaust valve control. The C43 remains civil and controlled when the valves are closed, while delivering a harder, deeper, and more vocal exhaust character when the valves open.
Flow & Design
The SPOOL Performance C43 Cat-Back Exhaust routes both exhaust banks through a single merged collector before splitting back out to the twin rear mufflers. Merging first and splitting late helps maintain stable exhaust flow through the mid-section while evening out the exhaust pulses entering each muffler.
The system is designed to improve flow quality, rather than simply increasing exhaust volume.
- Twin front inlets merge into one Y-collector for balanced flow from both exhaust banks
- Mandrel-bent tubing maintains the full internal diameter through every bend
- Consistent cross-sectional area helps avoid sudden restrictions and pressure drops
- Free-flowing rear mufflers replace the heavily baffled factory muffler units
OEM-Style Valve Control
Each rear muffler features its own exhaust valve operated by a vacuum actuator, crank lever, and return spring.
The exhaust system is designed around OEM-style valve operation, preserving factory-style valve behavior and keeping the exhaust note connected to the vehicle's drive mode instead of producing a loud exhaust note at all times.
With the valves closed, the system remains more controlled and suitable for normal driving. When the valves open, the exhaust becomes significantly harder and more vocal.
Exhaust Sound
The SPOOL C43 Cat-Back Exhaust delivers a noticeably deeper and fuller exhaust tone than stock with the valves closed and becomes considerably harder and more vocal once the valves open.
The merged mid-section is engineered to produce a cleaner and more focused exhaust tone compared with a straight muffler-delete configuration. This helps provide a more refined sound than a basic muffler delete, which can tend to produce a flatter and more droning exhaust character.
304 Stainless Steel Construction
The complete exhaust system is manufactured from 304 stainless steel, providing a durable construction designed to withstand exhaust heat and resist corrosion.
- 304 stainless steel construction throughout for heat and corrosion resistance
- Full TIG welding for clean, durable, leak-free joints
- Braided stainless steel flex joints on both front inlets to absorb engine movement and thermal expansion
- Band-clamp slip joints allow the exhaust system alignment to be precisely adjusted during installation
- Factory hanger locations are retained using welded rod hangers on each muffler
- Slash-cut stainless steel outlet tips, with one outlet tip per muffler
Direct Bolt-On Installation
The SPOOL Performance Mercedes-AMG C43 Cat-Back Exhaust is designed for direct bolt-on installation using the factory mounting points and supplied clamping hardware.
No cutting, welding, or permanent vehicle modification is required. The OEM exhaust system can be refitted at any time.
- Direct bolt-on installation
- Uses factory mounting points
- Supplied clamping hardware
- No cutting required
- No welding required
- No permanent modification required
- OEM exhaust system can be refitted at any time
Fitment
This SPOOL Performance Cat-Back Exhaust System is designed specifically for:
- Mercedes-AMG C43
- Engine: M276 3.0L Biturbo V6
For the most accurate application, verify your specific C43 chassis and model year before ordering.
Engineered Value
At SPOOL Performance, performance parts are developed and priced around genuine value. The manufacturing process has been optimized to reduce inefficiencies and control production costs without compromising product quality.
The result is a properly engineered cat-back exhaust system manufactured from high-quality materials and designed to deliver improved flow, enhanced exhaust sound, OEM-style valve functionality, and strong overall value.
Legal Disclaimer
This product is intended solely for closed-course competition or off-road use and is not legal for use on public roads or highways.
This product modifies or replaces emissions-related equipment and is not compliant with EPA or CARB emissions requirements. Use of this product on vehicles operated on public roads is prohibited.
By purchasing this product, the buyer acknowledges and assumes all responsibility for proper use and legal compliance.
The standard shipping rate applies to orders within the continental United States. If you intend to place an order outside of the continental US, please reach out to support@x-ph.com for assistance.
