Level Up Your W205 Mercedes – M276 BiTurbo V6 Performance Parts for C43 AMG, C450 & C400
Transform your W205 C-Class with bolt-on upgrades engineered for the 3.0L M276 twin-turbo V6. Gain real horsepower, quicker turbo spool, deeper exhaust note, and sharper response—while keeping daily drivability and reliability intact.
From catless downpipes that free up exhaust flow to custom ECU tuning that eliminates CEL and unlocks multiple maps (91/93/E85), these parts are fitment-tested on W205 chassis for seamless installs.
Collection Highlights
- ✅ 100% fitment for W205 C43 AMG, C450, C400 (2015–2020+)
- ✅ Raw stainless or ceramic-coated catless downpipes for max flow & sound
- ✅ In-house custom ECU tuning – no CEL, optimized maps, handheld flash optional
- ✅ Faster spool, improved mid-range torque, and aggressive exhaust dynamics
- ✅ Fast shipping from California – reliable delivery for U.S. builders
Whether you're chasing W205 C43 performance upgrades, M276 exhaust mods for C450, or tuning solutions for C400, this collection delivers proven results trusted by AMG tuners nationwide.
W205 C43 / C450 / C400 Performance FAQ
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Will catless downpipes trigger a CEL?
Yes, removing primary cats usually causes a check engine light due to O2 sensor readings. Our in-house ECU tuning codes it out completely while optimizing boost, timing, and fuel—keeping the dash clean.
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Is this setup daily-drivable?
Yes—designed for street use. With proper tuning, drivability stays factory-like (no rough idle or limp mode), while adding noticeable power and a refined, aggressive sound.
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What kind of power gains?
Downpipes alone: +10–20 hp/tq from better flow. Paired with our Stage 2 tune: +60–100 hp and +80–120 lb-ft typical (real-world dyno reports show 430–500+ hp on pump gas/E85, depending on fuel/octane).
Need guidance on the best combo or bundle (downpipes + tune)? Message us—we're Mercedes specialists and reply fast with tailored advice for your goals.
Professional installation and dyno tuning recommended. Gains vary by fuel, mods, and conditions. Not for use in emissions-strict areas without proper compliance.
