Description
LS series engines are simple, powerful, reliable machines, but no engine can deal with high oil temperatures. To cool the GTO’s massive engine, Mishimoto picked their largest oil cooler for the job. The 25-row stacked-plate cooler will have no problem making sure oil is at an optimal temperature. On the other end of this GTO oil cooler kit is a specially designed oil line adapter that bolts to the oil filter housing to allow for the attachment of their –AN stainless steel lines. The tight space restrictions eliminated the possibility of using a thermostatic sandwich plate, which they use on most of their other direct-fit oil cooler kits. Instead their In-line Oil Thermostat is used to regulate oil temperatures. This meticulously designed thermostat mounts under the headlight by means of its own direct-fit bracket, and will make sure your oil stays at a happy 185°F. During the testing process of this GTO oil cooler, the in-line thermostat was not used in order to eliminate it as a regulating variable. This means oil is constantly flowing through the cooler during testing, and these tests showed a 65°F oil temperature drop. This massive drop shows the cooling capabilities of this GTO oil cooler kit. Just like all of Mishimoto’s GTO parts, this kit comes with the Mishimoto Lifetime Warranty to make sure your oil temperatures are always on point.
- Direct fit for the 2004–2006 Pontiac GTO
- Reduces oil temperatures by 65°F (without in-line thermostat installed)
- Mishimoto In-Line Oil Thermostat maintains optimum 185° oil temperature
- Minimal pressure drop
- Application-specific mounting brackets
- 25-row stacked-plate oil cooler mounted in upper kidney grille for optimum airflow
- Includes CNC-machined application-specific oil adapter
- Pre-made stainless steel braided oil lines with durable -AN fittings
- Cooler available in either Sleek Silver or Stealth Black
- Increases oil capacity by 1.0 qt
- Mishimoto Lifetime Warranty
Note: It is the installer's responsibility to check all thermostat plugs, NPT plugs, line fittings, and other connections to assure they are fully tightened before operating the vehicle. Mishimoto recommends that you check all connections at regular intervals, especially during the first few miles after installation. For additional technical information, please contact us.
