Z1 Motorsports Upper Intake Plenum Modification Service Package for all '90+ 300zx models.
Following the success and popularity of the Z1 Motorsports 58mm Upgraded Throttle Bodies, Z1 is now offering our customers a complete modification service package to aid in the proper installation of their new throttle bodies. Also included in the service package, the Z1 Motorsports Service Department will also address two other key areas of the 300zx's Upper Intake Plenum that are commonly modified.
The Z1 Upper Intake Plenum Modification Service Package includes the following:
Precision Grinding and Removal of the appropriate material on the Throttle Body mating surface, ensuring proper installation and taking full advantage of the increased flow of the Z1 58mm Throttle Bodies.
Removal of excess material over the #1 Cylinder's Fuel Injector
Removal of the pressed in steel water bypass lines located on the underside of the plenum
Z1 Motorsports Upper Plenum Modification Service! - 
