Go-Zirra Ultraflow Intake Manifold
RB20DET INTAKE

This is the best intake manifold on the market under 1600 dollars. This is made from CNC machined Billet aluminum. This design was developed with many things in mind.

Key features -

• CNC machined
• CNC matched runners of equal length
• 100% ITB delete, remove the intake studs and install with with provided hardware. No more balancer tube, no more layers of gaskets. This is a true single throttle intake that bolts right to the head.
• Flow bench tested
• 14mm injector cups to suit injector dynamics 48 or 60mm / R34 Neo / R35 GTR
• Lower water pipe removed and relocated via fittings and collection point (or swirl pot)

Also included -

• Billet CNC Throttlebody, 90MM which uses RB25S1, RB20, RB26, Q45 TPS
• XL 14mm Topfeed rail with 3 ports for use upto -10AN but includes -6AN
• All mounting hardware
• O-Rings for IACV and Throttle body
• IACV block off plate
• 3/8 and 1/8 NPT fittings
• Throttle cable brackets
• 4 Coolant lines and coolant collector.