Michigan Motorsports 160° Degree LS3 Thermostat | Fits 2007+ GM LS Engines | 4.8L 5.3L 6.0L 6.2L 7.0L | Low Temperature Performance Cooling Upgrade

This 160 Degree LS3 Thermostat is a proven cooling upgrade for 2007-later GM LS-based car and truck engines, designed to reduce operating temperatures and improve overall thermal control. By opening at a lower temperature than factory thermostats, this unit allows coolant to circulate sooner, helping minimize heat soak, stabilize engine temperatures, and support consistent performance—especially in spirited driving, towing, or modified applications. Lower coolant temperatures can also assist with ignition timing stability and detonation resistance when paired with proper ECU calibration. Built as a direct-replacement thermostat, it installs easily into factory LS thermostat housings and works seamlessly with OEM cooling systems. Ideal for stock engines seeking better heat management or performance builds that demand improved cooling efficiency, this thermostat is a simple yet effective upgrade for long-term reliability and drivability.

• 160-Degree Opening Temperature: Opens earlier than factory thermostats to promote faster coolant circulation, helping reduce engine operating temperatures and maintain more consistent thermal control during demanding driving conditions.
• Improved Cooling Efficiency: Lower operating temps can enhance engine reliability, reduce stress on internal components, and support more stable combustion—particularly beneficial for performance-oriented or modified LS engines.
• Performance-Focused Upgrade: Commonly used in street/strip, towing, and spirited driving applications where controlling excess heat is critical for maintaining repeatable performance and protecting engine components.
• Direct-Fit Installation: Designed as a drop-in replacement for factory LS thermostat housings on 2007-newer LS-based engines, allowing for quick installation with no permanent modifications required.
• Broad LS Compatibility: Compatible with a wide range of GM LS-based engines in both cars and trucks, making it a versatile cooling upgrade for multiple platforms and build styles.