BenzUnited Parts
Premium Heat Shielded Catless Downpipes for Mercedes-AMG C63 & C63S (W205) 2015–2023
Premium Heat Shielded Catless Downpipes for Mercedes-AMG C63 & C63S (W205) 2015–2023
Couldn't load pickup availability
Upgrade your W205 C63 or C63S with these premium heat-shielded catless downpipes. Built specifically for the M177 BiTurbo V8, they maximize exhaust flow while retaining heat inside the pipes for quicker turbo spool and sharper throttle response. The integrated high-temperature shielding dramatically reduces under-hood heat, protects wiring and sensors, and helps keep intake air temperatures cooler.
Don't need the shielding? The standard catless version → is the same high-flow design without thermal shields, at a lower price.
Real M177 Exhaust Sound & Dyno
Real Sound Demo
Recorded on a tuned W205 C63 with these heat-shielded downpipes installed.
Dyno Results
Key Features & Benefits
- Premium Thermal Shielding — Keeps heat in the exhaust stream for quicker spool and drops under-hood temperatures
- Protects Wiring & Sensors — Less radiant heat soak into surrounding components
- Full Catless Design — Maximum exhaust flow and power potential
- Aggressive AMG Tone — Richer spool, crackles, and a deeper exhaust note
- Direct Bolt-On — Exact OEM flange match, no cutting or fabrication
Complete the Stage 2 Build
These downpipes are the hardware half of a Stage 2 M177. The tune is what turns them loose — it lets the ECU take advantage of the extra flow, and it clears the check-engine light the catless design will otherwise set.
The smart order: add the downpipes and the matching tune together so your calibration is built around the hardware from day one, instead of paying for a re-flash later.
Compatibility
| Chassis | Years | Models |
|---|---|---|
| W205 / C205 / A205 | 2015–2023 | C63 AMG, C63S AMG |
If your car is on that list, these bolt straight on with no cutting or fabrication.
Specifications
- Material: T304 stainless steel
- Design: Catless, mandrel-bent 3" tubing
- Heat Shielding: Premium high-temperature thermal shields
- Welds: Back-purged TIG
- Fitment: Direct bolt-on
Frequently Asked Questions
Do these require a tune?
They work well on stock vehicles. A tune is highly recommended for maximum performance and to clear fault codes.
Will I get a check engine light?
Removing the catalytic converters will typically set a catalyst-efficiency code on an untuned car. A tune clears this properly — we do not recommend defeat devices.
Is the heat shielding worth the extra cost?
On a daily-driven car, in a hot climate, or on a tuned setup — yes. Lower under-hood temperatures protect surrounding wiring and sensors and help keep intake air temps consistent on repeated pulls. On a dedicated track car with other cooling upgrades, the standard version may be enough.
Will they fit my exact vehicle?
These fit the W205 / C205 / A205 C63 and C63S AMG (2015–2023) with the M177 4.0L BiTurbo V8. If your car is on that list, it bolts straight on with no cutting. Not sure? Send us your VIN and we will confirm before you order.
How long does installation take?
Professional shops typically complete the install in 2–3 hours.
Is there a warranty?
Yes — a 12-month structural warranty, with guaranteed fitment on every model listed above.
Buy With Confidence
- 12-month structural warranty with guaranteed fitment on listed models
- Free U.S. shipping with tracking on every order
- Fitment confirmed before you buy — send your VIN and we will verify before you order
- Mercedes-AMG specialists — we focus exclusively on Mercedes platforms and know the M177 inside out
- Real support — questions before or after purchase come straight to us, not a call center
Confirm fitment or ask a question →
BenzUnited Parts • 12-Month Warranty • Ships Fast
For off-road / motorsport use only. Professional installation and ECU tuning recommended.
