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Weldspeed Nissan CA18-DET Intake Manifold

Nissan CA18-DET

The Weldspeed CA18-DET Intake Manifold is coming!


Barely needing introduction, the Nissan CA18-DET has a cult following all over the world.
Our CA18 Intake Manifold is an attempt to revive the love for modifying this platform, whilst providing a uniquely designed and aesthetically pleasing product. This Intake Manifold utilises the OEM lower runner section, allowing for use in both 4 & 8 port variants.


Our CA18-DET Intake Manifold consists of a precision CNC machined runner base from 6061-T6 billet aluminium with integrated bell mouths, our signature plenum style & of course the expert TIG welding with v-groove design (typical with pressure vessel standards) that is synonymous with our brand.

The CFD designed plenum is shaped to deliver air mass evenly to all four cylinders and help high revving engines continue to breathe well over 8000rpm. The orientation of the plenum can be ordered to front-of-engine or rear-of-engine facing and utilises Viton O-ring head flange seals & four vacuum/sensor ports.

**We may also offer a fuel rail option on release, TBC.

All manifolds are built to suit the throttle of your choice and are supplied in our Satin finish.



We recommend the International Courier service and is calculated at check out. For a more accurate price on shipping please contact us.

Intake Manifolds 7-10 business days
AT Power shaftless throttle 8-12 weeks
Bosch & Proflow throttles 7-10 business days

  • Specifications

    4-port & 8-port variant compatible
    RWD & FWD configurations
    CNC 6061-T6 Billet Runner Base
    High Boost and High RPM Design
    Viton O-ring Seal
    Vacuum Ports (1/8npt x3, 3/8npt x1)
    Various Throttle Body Options


    Build times may vary depending on your design selections & lead times on AT Power throttles (8-12 weeks), contact us for more info.

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