Hypertech part #1015 PowerStat 180 degree thermostat with housing
New in box with o-ring and instructions

Allows engine coolant to run about 15 degrees cooler than the factory 195 degree thermostat for more power.

Fits 1997-2003 LS1/LS6 and 1999-2003 GM 4.8/5.3/6.0 engines
Go to www.hypertech.com for more info.

$35 + shipping