Mishimoto 04-06 Pontiac GTO 5.7L/6.0L Thermostatic Oil Cooler Kit - Silver

If you're pushing your 2004-2006 Pontiac GTO hard, especially on the track or during spirited driving, keeping your oil temperatures in check is crucial. High oil temps can lead to increased engine wear and reduced performance. This Mishimoto Thermostatic Oil Cooler Kit is designed specifically for your GTO to tackle that challenge head-on.

This kit features Mishimoto's largest stacked-plate oil cooler, a 25-row unit that offers substantial cooling capacity. It's paired with a specially designed adapter that bolts to the oil filter housing, allowing for the installation of stainless steel braided lines. Because of the tight GTO engine bay, a traditional thermostatic sandwich plate wasn't feasible. Instead, Mishimoto uses an in-line thermostat that mounts neatly under the headlight with its own bracket. This thermostat regulates oil flow to maintain a consistent oil temperature around 185°F, ensuring your engine operates within its ideal range without overcooling.

During testing, with the thermostat bypassed to maximize cooling, this kit demonstrated an impressive 65°F drop in oil temperature. This shows the significant cooling potential of the system. The kit also results in a minimal pressure drop, so you won't sacrifice oil pressure. Mishimoto backs this kit with their Lifetime Warranty, giving you confidence in its long-term performance and reliability.