Installing Tuning Pipe

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Wipe out engine oil residues in the intake manifolds and sleeves with a cloth.
Loosen the four screw-type hose clamps of the tuning pipe and push the rubber sleeves as far as possible onto the side intake distributors.

Fig 1: Installing Tuning Pipe
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Guide tuning pipe between the intake distributors of both cylinder banks and connect vacuum line to the vacuum modulator of the tuning pipe. If necessary, clip vacuum line into the rear holder.
Information

Before removing tuning pipe, a mark should be made with a felt-tip pen on the intake distributor, rubber sleeve and tuning pipe so that the position for re-installation is correct.
Press tuning pipe between the side rubber sleeves and align with the marking. Make sure that the rubber sleeves and screw-type hose clamps are pushed equally onto the tuning pipe and intake distributors. Tighten screw-type hose clamps -arrows- .

Fig 2: Locating Screw-Type Hose Clamps Of Tuning Pipe On Rubber Sleeves
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Fit distributor pipe together with throttle body. To do this, push four screw-type hose clamps and the rubber sleeves onto the distributor pipe -arrows- . Guide distributor pipe together with mounted throttle body between the intake distributors. Align and tighten the rubber sleeves screw-type hose clamps.

Fig 3: Locating Distributor Pipe
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Fit the crankcase ventilation line, cable plug and hexagon nut. → Tightening torque: 7.5 ft. lb.