R44 BMW S58 200 Cell Sports Cat Downpipes For BMW G80/G81 M3, G82/G83 M4 & G87 M2
Description
The R44 BMW S58 200 Cell Sports Cat Downpipes are a premium exhaust upgrade developed to deliver a meaningful increase in performance and sound while retaining a more refined character than a full catless setup. Designed for the latest S58-powered M models, these downpipes replace the highly restrictive factory catalytic converters with high-flow 200 cell sports catalysts, significantly reducing exhaust gas back pressure. The result is quicker throttle response, faster turbo spool and stronger low- and mid-range power, without the harshness often associated with decat systems.
Each set is hand-crafted from TIG-welded 304-grade stainless steel and features CNC precision-machined flanges manufactured from billet stainless steel for durability and accurate fitment. Smooth radius bends are used throughout to minimise turbulence and maximise airflow. Following extensive road and track testing, R44 has moved from a previous 300 cell design to this 200 cell configuration to meet customer demand for improved flow and performance, while maintaining long-term reliability. Supplied with a 1 year R44 warranty and fitment guarantee, these sports cat downpipes offer a high-quality, well-balanced solution for fast road and track-focused builds.
Product Specification
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Hand-crafted, TIG-welded 304-grade stainless steel construction
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CNC precision-machined flanges from billet stainless steel
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Integrated 200 cell sports catalytic converters
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Smooth radius bends to reduce turbulence and improve flow
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Extensively tested on road and track for performance and durability
Key Features
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Far less airflow restriction than factory catalytic converters
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Noticeable reduction in exhaust back pressure
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Faster turbo spool and sharper throttle response
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Increased low-end and mid-range power
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Weight saving over OEM catalytic converters
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More refined exhaust tone compared to catless downpipes
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Reduced exhaust emissions and less fuel smell within the cabin
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Supplied with a 1 year R44 warranty and fitment guarantee
What’s in the Box?
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Set of R44 S58 200 Cell Sports Cat Downpipes
Important Note
While sports catalytic converters offer improved refinement and reduced emissions compared to catless systems, they do not guarantee prevention of a check engine light (CEL). Modern BMW DME systems can detect changes in catalyst efficiency, and these downpipes cannot be guaranteed to pass vehicle emissions testing in all regions.
Compatibility
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BMW G80 M3 Saloon (2021+)
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BMW G80 M3 Competition Saloon (2021+)
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BMW G81 M3 Touring (2023+)
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BMW G81 M3 Competition Touring (2023+)
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BMW G82 M4 Coupe (2021+)
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BMW G82 M4 Competition Coupe (2021+)
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BMW G83 M4 Convertible (2021+)
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BMW G83 M4 Competition Convertible (2021+)
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BMW G87 M2 Coupe (2023+)
Engineered specifically for the S58 platform, the R44 200 Cell Sports Cat Downpipes are an excellent choice for drivers seeking improved performance and sound with a more balanced, road-friendly character.
Will it fit my car?
We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.
Shipping
All orders made through MOD Central will be passed immediately to the supplier (R44 Performance) that has ships the item. You will get an email from them on the point of sale about processing and dispatch time.
Shipping Costs:
The cost of shipping will be calculated at checkout based on the destination, weight of the product and which vendor/vendors you are buying from.
Shipping Providers:
All our vendors work with trusted shipping partners to ensure your products are delivered safely. However, we are not responsible for any shipping delays, damages, or losses.
International Shipping:
Many of our vendors offer international shipping, but please be aware that additional customs fees or import taxes may apply. These charges are the responsibility of the buyer.
Tracking Information:
Once your order has been dispatched, you will receive a confirmation email with tracking details from the vendor your product was purchased from. If you have not received your tracking information, please contact the vendor with your order number.
Returns/Warranty
Eligibility:
All return eligibility will be specific to the vendor.
Return & Refund Process:
To initiate a return, please contact the vendor you purchased the product from with your order number and reason for return. Their team will provide further instructions.