When pushing your BMW to its limits, stock oiling setups simply aren't enough. High heat, weak housings, and plumbing headaches put your engine at risk. That's why we developed the VAC Billet Racing Oil Cooler Kit -- engineered in-house, race-proven for decades, and trusted by top BMW race teams worldwide.
This system isn't just an oil cooler. It's a complete solution:
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Motorsport Reliability: CNC-machined 6061 T6 aluminum housing -- over 2 lbs lighter than OEM and designed for years of track abuse.
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Flexibility for Every Build: Integrated oil temp/pressure ports, VANOS line ports, and AN fittings for turbo/supercharger feeds, dry sump, or Accusump integration.
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Street & Track Ready: Add an in-line thermostat for daily driving confidence.
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Simplified Service: Direct bolt-on fitment keeps power steering and alternator in stock locations, while making under-manifold servicing faster.
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Heat Exchanger Options: Choose 11"x5", 11"x8", or 11"x11" coolers to match your performance needs.
✅ BMW Model Fitment
This kit is designed for the following BMW engines: M50, M52, M52tu, S50 (Euro & US), S52 (US), M54, and S54.
That means it fits a wide range of BMWs, including:
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E30: (with S5x/M5x swaps)
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E36 3-Series (1992-1999): 325i, 325is, 328i, 328is, M3 (S50/S52)
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E46 3-Series (1999-2006): 323i, 325i, 328i, 330i, M3 (S54)
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Z3 (1996-2002): 2.8, 3.0, M Roadster, M Coupe (S52/S54)
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Z4 (2003-2006): 2.5i, 3.0i, Z4M (S54)
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E39 5-Series (1997-2003): 525i, 528i, 530i (with M52/M54 engines)
⚠️ Note: When fitting on M52tu and M54 engines, you must use the BMW E36 piston-style belt tensioner.
Options
👉 Whether you're building a street-friendly weekend car or a full-time track weapon, this kit gives you the confidence that your BMW's engine is protected -- with the same engineering trusted by VAC's own racing program.
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| Option | SKU | Price |
| Oil Cooler Size: 11 x 5" | VAC-11-ROCK-B-M50-5 | $999.95 |
| Oil Cooler Size: 11 x 8" | VAC-11-ROCK-B-M50-8 | $999.95 |
| Oil Cooler Size: 11 x 11" | VAC-11-ROCK-B-M50-11 | $999.95 |
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