Performance M
Dinan High Capacity Oil Cooler Kit for BMW E90 335i (No Factory Oil Cooler, M-Technic Bumper)
Dinan High Capacity Oil Cooler Kit for BMW E90 335i (No Factory Oil Cooler, M-Technic Bumper)
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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Uprated Engine Oil Cooling Package for BMW 3 Series E90 335i with M Technic front bumper and no factory oil radiator
Keep oil temperatures under control and power consistent on spirited road drives and track time. This Dinan high efficiency engine oil cooling package is purpose built for the E90 335i fitted with the M Technic front bumper and delivered without the original oil radiator from the factory. It is the go-to solution for hot-running turbo 3 Series cars that suffer from heat soak and limp-home protection when pushed hard.
The motorsport-grade heat exchanger delivers a massive step up in thermal performance with approximately double the oil capacity over the stock arrangement and a huge 414 square inches of cooling tube area versus 112.5 square inches on the standard unit. Result: faster heat rejection, more stable oil temps, and dependable performance lap after lap and mile after mile.
- Designed specifically for BMW E90 335i cars supplied without a factory oil radiator and equipped with the M Technic or M Sport style bumper
- Around 2x oil volume for superior thermal stability during fast road and track use
- 414 sq/in cooling tube area vs 112.5 sq/in on the OE cooler for serious heat management
- Integrated front ducting to feed the core for efficient airflow
- Enlarged exit to the wheel arch area to evacuate hot air effectively
- Neat factory-location mounting for an OEM-style, bolt-on installation
- Lightweight convoluted PTFE lines with polyester over-braid and race-quality hose ends
- Helps prevent limp-home events in hot weather and during extended hard driving
Why this upgrade
If you are chasing stronger temperature control on an E90 335i used for fast road, track day or tuned applications, this front-mounted oil radiator kit is a proven way to stabilise oil temps and protect engine longevity. It keeps the car consistent, protects against heat fade and supports reliable performance when you need it.
Proven by us and our customers
We have installed this uprated cooling package on customer builds and our own cars. Feedback is consistently positive, with noticeable drops in oil temperature and greater confidence to push hard without the car pulling power back.
Vehicle compatibility
BMW 3 Series E90 335i only. For vehicles without the original equipment oil radiator and fitted with the M Technic front bumper.
Fitting and support
Professional installation available at MJ Modifications in Warwickshire. Request a fitting quote via info@mjmodifications.co.uk. Not sure about suitability for your car? Get in touch and we will be happy to help.
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