Skunk2 Ultra Series Intake Manifold

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After a years worth of chatter and testing, the Skunk2 Racing high performance intake manifold for the NA and NB Mazda Miata has arrived! The unique two-piece modular intake manifold has been designed to be a bolt-on replacement for the anemic OEM unit, incorporating a removable plenum lid that allows for easy disassembly, porting, and plenum volume changes through the use of our optional plenum spacers. The Skunk2 Racing Ultra Street Intake Manifold has undergone extensive in-house dyno testing and has shown consistent torque and horsepower gains on HOT N/A builds and supercharged/turbocharged set-ups!

Link to Plenum Spacer HERE. 

Staggered double mounting holes on the flange enable fitment on both 1994-1997 and 1999-2005 heads (including 2004-2005 Mazdaspeed).


• Modular 2-piece design with removable 1.8L plenum
• Tapered 10.00” long high-velocity runners with raised velocity stack entries
• Unique mounting flange fits NA & NB heads
• Generously cast runner walls for porting
• 68mm throttle body opening
• Eliminates obstructive VICS and VTCS butterflies on factory 1999-2000 and 2001-2005 manifolds
• Tapped with 1/8” NPT, 1/4” NPT and 10mm threads for accessories
• Includes throttle cable bracket

 NOTICE: There have been reports related to the 4th runner making contact with the positive lead on the starter. Please double check the position of your starter lead and complete the install with your battery disconnected.  Adjustment of the throttle cable is necessary. If it’s not adjusted, your full throttle pedal position will strain the bracket, causing it to fail. 

4 Reviews

  • 5
    High quality

    Posted by Jacob Ortega on Aug 26th 2018

    Bolts right up to my BP4W head, many options for vacuum, ports etc. Great investment into this turbo build. Exposes fuel rail to look amazing with a radium fuel rail.

  • 5
    Skunk2 intake manifold

    Posted by Jason on Aug 5th 2018

    Good looking product! Seems lighter than the stock manifold. Sits much lower than the standard which makes it so much easier to get to the fuel rail and injectors.

  • 5
    Highly recommended

    Posted by Scotty on Jul 24th 2018

    Just about any Skunk2 product is fantastic. This manifold is no exception. I must I add, FINALLY, an intake manifold for the Miata is here!

    The minor changes I would make are that some of the bolt holes go through to the plenum chamber (requiring a sealant / loctite of some kind on the bolt threads) and most of the manifold bolts use a 4mm Allen when a 5mm is available (meaning they are much easier to strip if you opt for the plenum spacer). Even with these two minor imperfections, the product is absolutely top shelf.

    Keep up the great work!

  • 5
    Skunk2 Miata Intake Manifold

    Posted by Rob on Jan 29th 2018

    Excellent product - Just waiting to have it tuned.
    check out the install video.