CSF Race-Spec Motorsport Dual/Twin-Pass 8-Row Engine Oil Cooler / Oil Radiator for BMW E46 M3 S54/S54B32 – Direct-Fit Performance Upgrade, Front-Mount Track Day & HPDE Cooling Kit

BMW E46 M3 S54 engine lubrication cooling upgrade for track and fast road

Push your BMW M3 E46 harder and keep temperatures in check with this motorsport-grade engine oil radiator from a renowned cooling specialist. Built for drivers who demand consistent performance on circuit days, spirited B-road runs and endurance events, this high-efficiency twin‑pass style lube heat exchanger delivers outstanding thermal control and durability.

The core features an 8 row matrix with precision TIG-welded tapered extruded end tanks for exceptional strength and flow. It slots neatly behind the front bumper with a direct-fit installation, so no trimming is required. Expect quicker recovery between hard pulls, more stable viscosity under sustained load and enhanced engine protection for the S54.

Why enthusiasts choose this upgrade

• Serious temperature control for the S54 in the BMW M3 E46, ideal for track days, time attack, drifting and fast road
• Twin pass flow path maximises contact time in the core for improved heat rejection
• Eight-row performance core balances flow with cooling efficiency
• Fully TIG welded tapered extruded end tanks for long-term reliability
• Direct bolt-on fit behind the bumper, no cutting required
• Proven by decades of heat-exchanger expertise from a leading brand

Results you can feel

Our team at MJ Modifications has run this cooler on customer E46 builds and on our own projects. The feedback is consistent, with rock-solid temps lap after lap, sharper confidence on hot days and greater peace of mind when pushing an S54 hard. It is a superb upgrade for anyone who has outgrown the original component.

Perfect for

• BMW M3 E46 owners seeking a performance cooling upgrade
• Track-focused builds needing stronger heat management
• Fast road cars looking for improved reliability and consistency

Fitting and support

Want it installed professionally? Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and friendly advice on your E46 M3 cooling setup, from preparation to post-track service plans.

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