Untd. Performance Catless Downpipe – Mercedes-Benz – C300/E300 – M274

Unleash hidden power from your turbocharged 2.0L with the Untd. Performance Catless Downpipe for the Mercedes-Benz C300 and E300 (M274). Built for maximum flow and throttle response, this upgrade eliminates the restrictive factory catalytic converter—delivering quicker spool, sharper throttle feel, and an aggressive, turbocharged sound that completely transforms the driving experience.

Key Features:

Full Catless Design

Removes the stock catalytic converter to dramatically reduce backpressure and free up exhaust flow. This results in faster turbo response, increased horsepower and torque, and a more responsive engine—especially when paired with performance tuning.

Aggressive Turbocharged Sound

The catless setup brings out the true character of the M274, enhancing turbo whistle, boost response, and delivering a raw, sportier exhaust note that elevates your Benz from subtle to standout.

Built to Perform

Crafted from 304 stainless steel with TIG welds and CNC-machined flanges, this downpipe is built to handle high heat, high boost, and long-term abuse—on the street or track.

Seamless Fitment

Designed for direct bolt-on installation to the M274 platform, this downpipe integrates smoothly with the OEM or aftermarket exhaust system—no cutting or modification needed.

Compatibility:

• Mercedes-Benz C300 (W205) – 2.0L Turbo M274

• Mercedes-Benz E300 (W213) – 2.0L Turbo M274
  (Fits additional M274-equipped models with similar downpipe configuration)

If you’re ready to wake up your C-Class or E-Class with more sound, more boost, and more response, the Untd. Performance Catless Downpipe is the first step to getting the most out of your M274.

⚠️ Note: For off-road and track use only. Not emissions-compliant in all regions. Please check local laws before installation.