F90 M5 & F91/F92/F93 M8 S63R Cen-Cal Catless Downpipes (Primary & Secondary)
Pipe size Performance downpipe
Catalyst Catless
Application B58 BMW / Supra
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.

Unlock the true potential of your BMW’s S63R engine with the CenCal S63R Catless Downpipes — the ultimate performance upgrade for maximum airflow, sound, and power. Designed to replace the restrictive factory catalytic converters, these downpipes allow your turbos to spool faster and breathe freely, delivering sharper throttle response, improved turbo efficiency, and a deep, aggressive exhaust note that amplifies the M experience.

Built with precision and engineered for both right-hand and left-hand drive applications, our S63R downpipes ensure a perfect fit and reliable performance. Whether you’re running a stock turbo setup or upgraded units, these downpipes are a proven way to extract serious performance gains from your M5 or M8.

Product Features

1. Maximum Performance & Airflow:

Eliminates the factory catalytic converters to reduce backpressure and enhance turbo efficiency.

2. Dyno-Proven Power Gains:

Expect up to +30HP on a tuned S63R with stock turbos — even greater gains with upgraded turbos.

3. Optimized Design:

Smooth mandrel bends ensure unrestricted flow and improved exhaust velocity without drone.

4. Flex Pipe Section:

Reduces vibration and mechanical stress for long-term durability and fitment stability.

5. Precision Fitment:

Direct bolt-on design with spot-on alignment for both LHD and RHD vehicles.

6. Lifetime Warranty:

Backed by our lifetime warranty against defects and fitment issues.

Compatibility

  • BMW F90 M5 (2018–Current)
  • BMW F91 / F92 / F93 M8 (2019–Current)

Installation

Professional installation is strongly recommended. A proper tune is required to prevent check engine lights and to ensure optimal performance and drivability.

⚠️ THIS PRODUCT IS FOR OFFROAD USE ONLY

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