This item also fits additional vehicles. See Tech Specs below.

Chevrolet LSX engines achieve impressive power in both naturally aspirated and forced-induction forms. With added power comes increased heat that necessitates a reliable and efficient cooling system. Protect your Firebird from overheating by upgrading to the Mishimoto racing thermostat. This thermostat promotes greater cooling efficiency by significantly decreasing high engine temperatures. Once the engine is fully warmed up, the Mishimoto low-temperature racing thermostat will open at a lower temperature (160°F) compared to standard thermostats (186°F). This allows coolant to flow through the engine sooner, thus reducing and maintaining cooler engine temperatures. This is an ideal upgrade whether you drive your Firebird daily or take it to the strip on the weekends. As with all our products, this thermostat includes the Mishimoto lifetime warranty.

TECH SPECS



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Also Fits
97-08 Chevrolet Corvette
09 Buick LaCrosse
04-06 Buick Rainier
04-07 Cadillac CTS-V
02-06 Cadillac Escalade
02-06 Chevrolet Avalanche
98-02 Chevrolet Camaro
03-06 Chevrolet Express
06-09 Chevrolet Impala
06-07 Chevrolet Monte Carlo
99-06 Chevrolet Series Pickup
03-06 Chevrolet SSR
00-06 Chevrolet Suburban
00-06 Chevrolet Tahoe
03-06 Chevrolet Trailblazer
03-06 GMC Envoy
03-06 GMC Savana
99-06 GMC Sierra Series Pickup
00-06 GMC Yukon
03-07 Hummer H2
03-06 Isuzu Ascender
98-02 Pontiac Firebird
08-09 Pontiac G8
05-08 Pontiac Grand Prix
04-06 Pontiac GTO
06 Saab 9-7XMishimoto Activation Temperature
160°F / 71°C

Stock Activation Temperature
186°F / 85.5°C

Engine Codes
4.8L Vortec 4800
5.3L Vortec 5300
6.0L Vortec 6000
5.7L LS1
6.0L LS2
6.2L LS3
5.7L LS6
7.0L LS7
6.0L Vortec 6000
5.7L LS1
6.0L LS2
6.2L LS3
5.7L LS6
7.0L LS7

LIFETIME WARRANTY


Mishimoto Performance (MP), warrants all of its products under its 'no questions asked' limited lifetime warranty policy. Regardless of the defect in product, Mishimoto will replace the original product. Warranty claims must be accompanied by the original sales receipt from an authorized dealer.

A trained professional should install all MP products. Any issues with compatibility or installation should be addressed before attempting to install the product.

The purchaser's remedy for breach of this limited warranty, exclusive of all other remedies provided by law, is expressly limited to repair or replacement of any part or parts. All products returned for warranty consideration must be returned to MP with all transportation expenses prepaid.

MP shall not be responsible for damages to its products or injury to persons using the products in any manner that would constitute improper operation, including but not limited to: incorrect opening of radiator pressure caps, burst hoses, unintended application or usage not intended by MP, negligence, improper installation, or any other use that may cause damages or injury. MP shall not be responsible for injury or harm to persons or property when caused by persons or vehicles using its products.

Accident Protection

Mishimoto, under its no questions asked warranty policy, will provide a warranty for all claims including vehicles involved in accidents. Warranty claims must include pictures of the accident and an official police report, and must be within three months of the accident.

Fitment Disclaimer

All Mishimoto products are engineered to fit with OEM applications, as well as other Mishimoto products.

Mishimoto will not be held responsible for fitment issues caused by attempted installation of additional aftermarket parts. This includes, but is not limited to, performance parts and any other non-OEM replacement parts. Fitment with different brands cannot be guaranteed.

Furthermore, Mishimoto will not be held responsible for fitment issues caused by an accident. Many times, clearances needed for installation are very strict. If a vehicle has been involved in a front-end accident, available space for a product such as a thicker aluminum radiator may be compromised.

For all warranty claims, please contact us.