VRSF 200 Cell High-Flow Sports Catalytic Converters (Catted Turbo Downpipes) for BMW X3M X4M S58 F97 F98 – Brushed 304 Stainless, Primary & Secondary, Bolt-On Exhaust Upgrade

High-flow sports catalytic converters for BMW M S58. Brushed stainless finish. Serious performance upgrade

Unlock stronger turbo response, real power gains and a deeper, more purposeful exhaust note with these VRSF high-flow sports catalysts for the S58-powered BMW M crossover range. Precision made from premium 304 stainless with a smart brushed finish, this catted downpipe set replaces the restrictive factory units to cut back pressure and free up flow for faster spool and extra punch across the rev range.

Proven performance

• Typical bolt-on gains around 30 whp and 35 wtq.
• With suitable tuning, increases of up to 60 whp and 100 wtq have been recorded.
• Noticeably quicker turbo spool for sharper throttle response.
• More aggressive sound without resorting to a catless setup.

Engineered to flow

• Mandrel-bent tubing with smooth radius transitions to minimise turbulence and maximise exhaust velocity.
• Hand-crafted TIG-welded 304-grade stainless steel for strength and long-term durability.
• CAD and CAM optimised CNC flanges for precise, leak-free sealing.
• Brushed finish for a clean, OEM-plus look.
• 200 cell high-flow sports cat cores for excellent flow with a catted solution.

Fitment and compatibility

• Direct bolt-on replacement. No cutting required.
• Includes both primary and secondary sections.
• Suitable for right-hand drive and left-hand drive vehicles.
• 2019 to 2022 BMW F97 X3M with S58 engine.
• 2019 to 2022 BMW F98 X4M with S58 engine.

What our customers say

We have installed these high-flow catted downpipes on numerous S58 builds at MJ Modifications and the feedback is consistently excellent. Customers love the stronger mid-range, improved responsiveness and the quality of the finish and fit.

Warranty

1 year limited warranty on the catted version against defects and fitment issues.

Professional installation

Prefer us to fit it for you. MJ Modifications in Warwickshire offers full installation and setup. Request a fitting quote at info@mjmodifications.co.uk.

Why choose these high-flow sports cats

• Excellent value performance upgrade for the S58 twin-turbo platform.
• Quality materials and construction for reliable, long-lasting results.
• Direct-fit design makes this one of the most effective first upgrades for your M SUV.

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