Russell Performance -3 AN 4-foot 90 Degree to Straight Pre-Made Nitrous and Fuel Line Thermal Gaskets The silicone counteracts this by

The silicone counteracts this by acting as a thermal barrier (much like header wrap)

With the same allen wrench

SPAL 861 CFM 12in Fan - Pull

Fits: E30 325i / E34 525i

For this reason

Russell Performance -3 AN 4-foot 90 Degree to Straight Pre-Made Nitrous and Fuel Line Thermal Gaskets The silicone counteracts this byRussell Nitrous Line assemblies are manufactured at the Russell facility and assembled by dedicated Russell professionals. All nitrous line assemblies are constructed using Russell PowerFlex stainless steel braided hose. Lines feature precision crimped installed hose ends providing a leak free connection. Use blue hose ends for NITROUS, and red hose ends for FUEL.