Maximize the performance of your W205 C63/C63S AMG with this premium downpipe. Catless or high-flow cat options. +15 HP and +25 Nm of power gain. Stainless steel construction for maximum durability. Perfect for stage 2+ tunes on the 4.0L V8 biturbo.
Advantages
- +15HP and +25Nm power gain
- Catless or high flow cat options
- Stainless steel construction – durable and reliable
- Improved turbo spool and throttle response
- Direct bolt-on – uses OE mounting points
Material & Construction
This downpipe is made of high-quality stainless steel (T304) with TIG-welded connections. It's available in catless (maximum flow) or high-flow cat (200-cell sports catalytic converter) versions. Both options are optimized for maximum flow and minimal backpressure on the 4.0L V8 biturbo engine.
The downpipe replaces the restrictive original equipment catalytic converters and significantly improves exhaust flow. This results in a gain of +15 hp and +25 Nm of power, better turbo spooling, and improved throttle response. Suitable for Mercedes-Benz W205 C63 and C63S AMG with a 4.0L V8 biturbo engine. Stage 2 tuning required for optimal performance.
Installation & Assembly
The downpipe is a direct bolt-on replacement. Remove the original downpipe and catalytic converters. Install the new downpipe using the original mounting points. Use new gaskets and bolts. Stage 2 tuning is required to prevent CEL (check engine light) and achieve optimal performance. Professional installation is highly recommended.
Key specs: T304 stainless steel construction, TIG-welded, catless/high-flow cat options, +15 HP +25 Nm, weight approximately 2 kg, suitable for W205 C63/C63S AMG 4.0L V8. Stage 2 tuning required. Note: Catless not legal for street use in some countries.
Technical Specifications
| Material
|
Stainless steel T304 |
| Options
|
Catless, high flow cat (200 cell) |
| Capital gains
|
+15HP +25Nm |
| Engine
|
4.0L V8 biturbo (W205 C63/C63S) |
| Weight
|
2kg |
| Assembly
|
Direct bolt-on |
| Tuning
|
Stage 2 required |
Maintenance & Warranty
Check the fasteners and gaskets regularly. Replace the gasket if leaks occur. High-flow cathode can become contaminated over time; clean if necessary. Stainless steel can discolor due to heat; this is normal.
This product is covered by the manufacturer's warranty against material and manufacturing defects. Damage due to improper installation or excessive use is not covered by the warranty.
Frequently Asked Questions
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Catless or high flow cat? Catless = max flow, high flow = 200 cell sport cat (legal).
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Do I need tuning? Yes, Stage 2 tuning is required for CEL and optimal performance.
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How much power will I gain? +15 HP and +25 Nm with Stage 2 tuning.
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Does this fit the C63S? Yes, it's suitable for both the C63 and C63S AMG.
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How long does delivery take? Available from stock.
