It's the vacuum line that connects from the intake hose to the brake booster.

On my 4.8is n62 the line goes inside through the ignition wiring box and out the back and into the strut tower to the brake booster.

Mine is in pretty bad shape and want to replace it as well but couldn't open the ignition wiring case in fear of breaking all the tabs.


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2005 Imola 4.8iS