Mercedes-Benz GLC43 (2017-2025) X253 Valvetronic Exhaust System

Fi EXHAUST – Mercedes-AMG X253 / C253 GLC43

Valvetronic High-Performance Exhaust System | T304 Stainless Steel | Bolt-On Upgrade

🏎 Product Overview

Enhance the sound, power, and personality of your Mercedes-AMG GLC43 (X253 / C253) with the Fi EXHAUST Valvetronic System. Constructed from T304 high-grade stainless steel, this bolt-on catback upgrade delivers an adrenaline-fueled soundtrack and measurable performance gains — on both road and track.

🔊 Adaptive Sound Profiles – Valvetronic Technology

Switch between stealth and performance with valve-controlled exhaust dynamics:

• Valves Closed: Exhaust gases flow through the muffler for a quieter, refined tone — ideal for commuting or neighborhood-friendly driving.

• Valves Open: Full-throttle exhilaration — an aggressive, motorsport-inspired roar that defines AMG power.

Control Options:

• Factory exhaust/sport button

• Drive mode selector

• Optional Fi Pro Remote Control or mobile app for wireless tuning

⚙️ Performance Gains

With a full catless setup (catback + downpipes), the system delivers:

• 5–10% increase in horsepower

• Improved torque curve and throttle response

• Reduced exhaust backpressure and optimized flow

🧩 Modular System – Sold Separately

Each component is individually sold to allow for custom configuration based on region, emissions requirements, or driving goals.

✅ Catback Exhaust Includes:

• Front & Mid Pipe

• Valvetronic Muffler with EV Valve

• Quad Tip System (various finishes available)

• Compatible with OEM electronic valves (no remote control included)

🔧 Downpipe Options (Optional):

• Ultra High Flow Catless Downpipe

• Sport 200 Cell Catted Downpipe
  (Ensure regional emission compliance before installation)

🎨 Tip Finishes (Optional):

• Quad Tips in Titanium Blue, Carbon Fiber, Diamond Black, or Gold

📲 Remote Control System (Optional):

• OBDII plug-and-play module

• Supports Fi Mobile App and Fi Remote Key Fob

📌 Fitment & Compatibility

• Vehicle: Mercedes-AMG GLC43

• Chassis Codes: X253 / C253

• Engine: 3.0L V6 Bi-Turbo

• Years: Varies by regional model availability

• Valvetronic Compatibility: Fully compatible with factory electronic valve control

📎 Additional Notes

• All components must be purchased individually

• Actual product appearance may vary by production batch or model year

• Compatible with both pre-facelift and facelift GLC43 models

• Images are for reference only

🏁 Why Choose Fi EXHAUST?

• Industry-leading valvetronic control

• Individually designed muffler internals for AMG models

• Precision-built using T304 stainless steel for longevity and corrosion resistance

• Designed for maximum street legality, performance, and acoustic excellence

Looking to build your complete GLC43 Fi EXHAUST setup?
Contact us for component recommendations, bundled pricing, or help choosing the right downpipe and tip finish for your build