BMW G20/G22 M340i/M440i Gen 3 B58 Catless Downpipe
Pipe size Performance downpipe
Catalyst Catless
Application 2025+ B58 Gen 3
Build data

Specs that matter for this part

Hardware

Flow-focused exhaust path

Large-diameter tubing, smooth bends, and a flex section reduce restriction versus the factory exhaust path.

Validation

Catalyst configuration

Catless setup. Review local emissions requirements and product notes before street use.

Requirement

Direct bolt-on hardware

Designed to retain OEM-style fitment without cutting or welding on supported applications.

Downpipes can affect emissions readiness, sound level, and calibration needs. Review the product description before ordering.

BMW G20/G22 M340i/M440i Gen 3 B58 Catless Downpipe

Unlock the full potential of your Gen 3 B58-powered BMW with the CenCal Motorsport Catless Downpipe for the LCI G20 M340i and G22 M440i.

Designed to maximize exhaust flow and eliminate the restriction of the factory catalytic converter, this downpipe delivers noticeable gains in horsepower, turbo response, and exhaust sound. From sharper throttle response to louder turbo spool and aggressive exhaust tones, this upgrade transforms the driving experience of your Gen 3 B58 platform.

This exclusive unreleased setup gives enthusiasts early access to one of the most anticipated performance upgrades for the latest B58 generation — making it the perfect choice for drivers who want to stay ahead of the crowd.

Key Features & Benefits

  • Increased Exhaust Flow – Reduces backpressure and improves turbo efficiency
  • Faster Turbo Spool – Enhances throttle response and boost delivery
  • Aggressive Exhaust Sound – Produces deeper exhaust tones with louder turbo spool and crackles
  • Performance Gains – Supports significant horsepower and torque increases when paired with tuning
  • Premium Construction – Built for durability under high heat and performance conditions
  • Direct Bolt-On Design – Engineered specifically for Gen 3 B58 applications
  • Exclusive Early Release Product – Limited availability before public market release

Fitment

  • LCI BMW G20 M340i
  • LCI BMW G22 M440i

Installation Notes

  • Professional installation is highly recommended.
  • ECU tuning is recommended to maximize performance and avoid potential check engine lights.
⚠️ THIS PRODUCT IS FOR OFFROAD USE ONLY.

Recently Viewed