You have 3 different manufacturers to choose from. At a minimum, all of them upgrade the core & coolant lines.
- AR Design sells an oil cooler kit that basically piggy backs on the OEM oil cooler and installs in front of the radiator. **Easiest to install
Evolution Racewerks sells 2 different oil cooler kits & is basically the middle ground between a simple upgrade & a flown blown "race kit". Like the OEM style oil cooler, the kit installs into the wheel well. The Normal kit basically upgrades/replaces the entire OEM oil cooler, while the Race kit adds a second oil cooler into the other wheel well.
- STETT sells the most "purpose race built" kit out the 3. It has the best core (Setrab) and offers an optional 180F thermostat that starts the cooling process ~50 degrees F lower than the OEM thermostat.