Z32 Vacuum Hose Kit
Replacement Guide Chart
This is an incomplete list of vacuum hoses on a stock '91 TT (incomplete because mine is not stock and the PRVR and AIV have been deleted along with a boost controller being installed). I did not modify any other lines as they are actually effeciently routed to begin with (unlike the Z31). Forgive any terminology that isn't precise - in fact, if you have suggestions for using the correct terms, let me know so I can update this. If you want to reuse stock clamps, you may have to modify them as silicone hose can have a smaller outer diameter. Most people just use zip ties.
Hose Description |
SIZE |
Length (inches) |
| FPR to Air Gallery | 4mm | 3.5" |
| Air Gallery (from FPR) to Manifold | 4mm | 5" (modified [loop] for PRVR delete) |
| Fuel Damper to Balance Tube | 4mm | 4" |
| Balance Tube (pass side) to Stock Boost Sensor | 3mm | |
| Pass Side Intake to Pass Front Gallery (lower) | 4mm | 8.5" |
| Pass Side Throttle to Pass Front Gallery (upper) | 4mm | 5" |
| Pass Rear Gallery (lower) to EGR Solenoid (middle) | 4mm | 5" |
| Pass Rear Gallery (upper) to EGR Solenoid (lower) | 4mm | 8" |
| Driver Side Throttle to Driver Front Gallery (left) | 4mm | 15.5" |
| EGR Top to Engine Rear Gallery | 4mm | 9.5" |
| Pass Discharge Pipe to Balance Tube (pass side) | 6mm | 29" |
| Driver Front Gallery (right) to Driver Side Rear Manifold | 6mm | 20.5" |
| Driver Front Gallery (middle) to Driver Side Front Manifold (under) | 6mm | 22" |
FAULTING ARE THE FOLLOWING LINES: