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Wagner Tuning 200 CPSI Catted Downpipe Kit – Mercedes CLA45 C117 & GLA45 X156 AMG M133
Wagner Tuning 200 CPSI Catted Downpipe Kit – Mercedes CLA45 C117 & GLA45 X156 AMG M133
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The Wagner Tuning 200 CPSI downpipe kit for the Mercedes-AMG CLA45 (C117) and GLA45 (X156) with the M133 2.0L turbo. Flow-optimised CAD design, Ø76 mm piping, and a 200-cell metal racing catalytic converter — built to cut back pressure and turbo thermal load without going fully catless.
Performance Advantages
- Significantly reduced exhaust back pressure
- Improved throttle response and torque delivery
- Lower thermal load on the turbocharger
- Optimised exhaust gas flow for tuned and performance-driven cars
Engineering & Materials
- Cast stainless steel 1.4301 (SS304)
- Ø76 mm diameter before and after the catalytic converter
- Flow-optimised CAD design
- Two lambda probe connections for precise exhaust monitoring
- 200 CPSI metal racing catalytic converter with EU6 coating
- Lightweight construction — 7.5 kg
Vehicle Compatibility
| Model | Chassis | Engine |
|---|---|---|
| Mercedes-AMG CLA45 | C117 | M133 2.0L Turbo |
| Mercedes-AMG GLA45 | X156 | M133 2.0L Turbo |
Frequently Asked Questions
Will this fit my CLA45 or GLA45?
Yes — designed for the Mercedes-AMG CLA45 (C117) and GLA45 (X156) with the M133 2.0L turbo engine.
Will I get a check engine light?
Less likely than with a catless setup — the 200 CPSI EU6-coated racing cat is designed to keep the downstream sensors happy on most cars. A calibration is still the cleanest way to run it.
How is this different from a catless downpipe?
A catless downpipe removes the catalytic converter entirely for maximum flow. This kit keeps a high-flow 200-cell metal cat, which flows far better than the factory unit while remaining more street-friendly and quieter at cruise. Neither option is a certified replacement converter — see the emissions notice at the top of this page.
What warranty comes with it?
A 12-month Wagner Tuning manufacturer warranty against material and manufacturing defects. Wagner warranties are non-transferable, and their 48-month extension programme applies to intercoolers only — not to downpipes.
What are the technical specs?
Cast stainless steel 1.4301 (SS304), Ø76 mm pipe diameter, 200 CPSI metal racing catalytic converter, two lambda sensor ports, 7.5 kg.
Buy With Confidence
- 12-month Wagner Tuning manufacturer warranty against material and manufacturing defects
- Free U.S. shipping with tracking on every order
- Fitment confirmed before you buy — send your VIN and we'll verify before you order
- Mercedes specialists — we focus exclusively on Mercedes platforms
- Real support — questions before or after purchase go straight to us, not a call center
Confirm fitment or ask a question →
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