BenzUnited Parts
2015–2023 Mercedes C300 Catless Downpipe | M274 2.0L E300 GLC300
2015–2023 Mercedes C300 Catless Downpipe | M274 2.0L E300 GLC300
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C300 • E300 • GLC300 • SLC300 • M274 2.0L Turbo Models
🎧 Hear and Feel the Difference
High-Flow Catless
Maximizes exhaust flow for stronger mid-range torque and increased top-end power. Expect +60 HP and +75 lb-ft with proper tuning.
Quicker Spool
Reduces turbo lag for sharper throttle response and harder acceleration throughout the rev range.
OEM-Fit Details
Correct O₂ bung locations, CNC stainless flanges, and TIG welds for a true bolt-on install—no mods required.
M274 ECU Tuning: Eliminate CEL, unleash full boost, and add serious horsepower with razor-sharp throttle response. See Tuning →
⚙️ Compatibility Chart
| Model | Chassis | Years |
|---|---|---|
| Mercedes-Benz C300 | W205, C205, A205 | 2015–2021 |
| Mercedes-Benz E300 | W213 | 2017–2020 |
| Mercedes-Benz GLC300 | X253, C253 | 2016–2022 |
| Mercedes-Benz SLC300 | R172 | 2016–2020 |
If your model is listed above, these will fit—no modifications required.
🏁 Why Choose BenzUnited Parts?
At BenzUnited Parts, we specialize in Mercedes-Benz M274 performance parts. Whether you daily drive a GLC300, push a E300 on the weekends, or tune an W205 C300 for track days, our parts are engineered specifically for the M274 2.0L Turbo I4.
- Track-tested parts from real street, backroad, and track use.
- Exact fit on W205, W213, X253/C253, and R172 platforms.
- Power + sound Dyno-proven M274 power gains with a deeper, more aggressive exhaust tone.
- Backed by enthusiast support from people who install and test these parts on their vehicles.
📘 Max Out Your Mercedes M274
Discover the best bolt-ons to pair with your tune & downpipes—high-flow panel filters and custom exhaust setups—tested on real M274 builds. No fluff, just results.
🔍 Read the M274 Recommended Mods Guide
