Oil Cooler Box & Mounts
A shroud that forces oncoming air through a generic 16-row cooler instead of around it.
€50
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At a glance
- Dropped peak oil from 135 °C to 108 °C in full 30-min track sessions
- Fits any generic 16-row cooler — you source the core
- Four rivets in the bumper support — roughly 1 hour of install time
- Meant as a temporary solution — still running it a year later
Why it exists
Track time, not cooling laps
I hated seeing 135 °C oil after six minutes on track and spending the rest of the session cooling down instead of driving. I waited on a name-brand kit for more than half a year, then built this as a temporary solution. It works.
- 30-minute sessions — peaked at 108 °C, flat line after that.
- Airflow guide, not just a bracket — the box forces oncoming air through the cooler matrix instead of letting it slip around.
- ~1 hour install — four rivets into the bumper support, nothing more.
- Generic 16-row cooler — cheap, available everywhere, no proprietary parts.
- Printed in high-temp polymer — sits in warm airflow without sagging.
- Drops straight into the stock bumper — no cutting visible from outside.
Numbers · 30-min session
Peak oil temperature, before vs after
Stock cooling · 6 min
135°C
Session cut shortHot
With box
16-row + box · 30 min
108°C
Full session−27 °C
Install effort
~1hour
4 rivets · bumper supportEasy
Gallery
Install & fitment
Closing note
Still on the car
Built as a stop-gap while waiting for a name-brand kit — it's been on the car ever since. If your i30N keeps pulling sessions short because of oil temps, this is the cheapest way to get your time back.
You supply a generic 16-row oil cooler, fittings, and hoses. Kit includes the airflow box and bumper-support mounts.