Zerofab Intake RB Series Intake Manifold with 80MM Throttlebody

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ZeroFab Billet RB20DET, RB25DET, RB26DETT intake manifold kit 

Manifold will be polished with silver throttle and black rail. Will completely delete the ITB's on RB26DETT


Includes rb26 intake manifold with billet 90mm throttle and fuel rail kit as well as new redesigned water pipe. 90mm recommend for all but most extreme builds making well over 1000hp.

This manifold will completely delete the stock itb and replace with 1 piece with a single 80mm throttle body. 

Uses a 14mm injector on manifold and fuel rail. Eliminates the poor design of factory manifolds and other units that require a bottom injector bushing.

Injectors capable
R35 OEM 550CC,
48 or 60mm length 14MM top/bottom O-Ring

Color is silver intake and throttle with black fuel rail. 

The intake manifold is made with a custom CNC billet flange unlike other cheap manifolds. The fitment is perfect the port shaping is spot on.  

The IACV and throttle flange are also CNC and o-ringed for perfect seal.  

The rest of the manifold is aluminum sheet metal no cast aluminum is used on this manifold.  

The flange incorporates a new design for the water pipe with push on fittings and 4 preshaped silicone hoses eliminating the factory water pipe setup completely.  

Included in kit-  

• Billet CNC Throttlebody, 90MM which uses RB25S1, RB20, RB26, Q45 TPS

• XL 14mm Topfeed rail with 3 ports for use up to -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

Note OEM oil cooler will require deletion.


This is a special order item with an extended lead time.