Key Features
Ideal kit to bypass the cabin heater on any LS family engine (LS1, LT1, LQ9, etc.) with 5/8" and 3/4" heater supply and return ports.
Lowest profile heater loop on the market (3 inches tall).
Eliminates concerns about air pockets that can develop when capping off heater lines.
Withstands harsh high temperature and high pressure operating conditions. Max. temperature rating: 350F (177C).
Includes HPS 100% stainless steel industrial grade embossed hose clamps which will not cut through silicone hose.

The HPS High Temp 4-ply Reinforced Silicone Bypass Loop Kit is designed to bypass the cabin heater on any LS family engine (LS1, LT1, LQ9, etc.) with 5/8" and 3/4" heater supply and return ports. This easy to install loop eliminates concerns about air pockets that can develop when capping off your heater lines. This product is the lowest profile heater loop on the market, measuring in at only 3 inches tall. Engineered for extremely high temperature service and prolonged exposure to under hood heat, this race proven design can withstand the harshest operating conditions. 100% stainless steel embossed hose clamps are included for easy installation. Maximum temperature rating: 350 degrees Fahrenheit.

Vehicle Application
LS Swap LS LT LQ