Remove the original assembly
Loosen the intercooler connection. Remove the scoop and right radiator fan, disconnecting its wiring. Remove the turbo fasteners and release the bypass-valve connection. Disconnect the valve’s vacuum line and the two crankcase hoses, then lift out the charge pipe and valve.
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Build the lower connection
Transfer the original O-ring to the adapter and torque the supplied M8 screws to 15 ft-lb. Fit the bypass valve into the supplied coupler and connect the adapter, valve and inlet together. Secure their clamps, then restore vacuum and crankcase hoses.
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Align and verify
Install the pipe into the intercooler coupler without folding its lip. Rotate and slide for engine, sensor and fan clearance; clamp behind the beads. Refit and reconnect the fan. Check idle and leaks before driving; recheck every hose if it runs poorly.
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Products in this guide
Sources / references 2
- PERRIN official installation instructions ↗Reviewed Oct 8, 2026
- PERRIN official instructions database ↗Reviewed Oct 8, 2026
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