CSF Transmission Oil Cooler with Rock Guard for BMW M2 G87 (S58) - Plug-and-Play Dual-Core Performance Upgrade

CSF Gearbox Cooler Upgrade with Stone Guard for BMW G87 M2 S58

Push your G87 harder with confidence. This CSF dual-core gearbox oil cooler keeps the S58’s automatic transmission fluid under control during fast road driving and track work, delivering crisp, repeatable shifts and long-term reliability. Manufactured by CSF in Europe, it is a direct-fit, bolt-on solution that drops straight into the factory position with OEM-style connections and mounts.

• Massive step up in cooling area and thermal capacity compared with the factory heat exchanger
• Dual-core layout for increased thermal mass and stability under sustained load
• Approx. 194 percent increase in overall core volume and around 94 percent more fluid capacity
• High-pressure 16 mm 9-channel microtube construction for exceptional heat rejection
• Detachable protective stone guard shields the fins from road debris and gravel
• Direct-fit, drop-in installation using stock-style brackets and connectors
• Ideal for tuned S58 cars, track days and spirited driving where the OE unit can struggle

Keep gearbox temperatures in check

Hard use can drive up auto transmission fluid temps, causing heat soak, torque reduction and inconsistent shift quality. Upgrading to CSF’s advanced cooling package helps reduce fluid temperatures, supports consistent performance and protects the gearbox during repeated high-load runs and long sessions on circuit.

Race-bred CSF core technology

CSF’s condenser-style microtube design optimises oil flow and maximises surface area for rapid heat rejection. The robust 1-row, 16 mm 9-channel microtube architecture works with the dual-core layout to stabilise temperatures and maintain shift quality, lap after lap.

Real-world protection with the included guard

Open grilles and close drafting can pepper the front end with stones. The supplied detachable guard helps preserve the cooler’s fins from impact damage, keeping airflow efficient and your M2 performing at its best.

Proven by us and our customers

We have installed and run this CSF cooler on S58-powered builds and have seen the benefits first hand. Customers consistently report lower gearbox fluid temps and more consistent, quicker shifts under heavy load. It is a high-quality, high-confidence upgrade for the BMW G87 M2.

Fitting and support

Want it installed properly the first time? Book professional fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Popular search terms

BMW M2 G87 gearbox cooler upgrade, S58 auto trans cooler kit, CSF cooler G87, BMW M2 transmission radiator, BMW M2 auxiliary cooler, BMW M2 ZF8 cooling upgrade, uprated gearbox heat exchanger, performance cooler for BMW G87, track day gearbox cooling M2, drop-in gearbox cooler, bolt-on transmission cooler BMW S58.