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Skunk2 Ultra Series Race Intake Manifold K-Series Silver 3.5L (307-05-8000)

The Skunk2 Racing team is proud to release the next generation of high performance intake manifolds. With years of endless research and ingenious developments they have now produced the much anticipated Ultra Series Race Intake Manifold K-series.

From applying CFD (Computational Fluid Dynamics) software; it's sleek three-piece modular design offers advantages such as easy plenum volume changes, porting and disassembly through the benefit of removable and optional plenum spacers. Additionally it's wide 90mm throttle body opening, 87mm velocity stacks and and hi-velocity intake runners allow smooth transitions with high-horsepower, forced or naturally aspirated induction setups. 

With extensive dyno testing, the Ultra Series Race Intake Manifold has proven to become a state-of-the-art design that yields less restriction, incredible torque and advanced power increase over many competitors. Ultra Race Intake Manifolds embody a strong and lightweight design which is carefully crafted from a high-grade 356 aluminium alloy and CNC-machined to fit precisely. 


  • Optional Billet Aluminum Plenum Spacers in 1L or 2L sizes                          Modular 3pc. Design w/ Removable Plenum
  • 3.5L Plenum Volume
  • 6.0” Tapered Hi-Velocity Runners                                                                   
  • 90mm Throttle Body Flange - Std. 5.0L Ford Pattern                                      
  • Raised 87mm Velocity Stacks
  • Generously Cast Runner Walls for Porting
  • Provisions Secondary Fuel Rail & Injectors
  • 4 x 1/8” NPT, 3 x 1/4” NPT, and 1 x 3/8" NPT Accessory Ports
  • Hi-Grade Mounting Hardware
  • Thermal Gasket Included
  • Fits MOST Popular Chassis Configurations - Not Just Race Cars -   ***Modification may be Required***
Fitment & Specs
  • 2002 - 2005 Honda Civic (Si, Si)
  • 2002 - 2006 Acura RSX (Base, Type-S, Base, Type-S)
  • 2004 - 2006 Acura TSX (Base, Base)
  • Compatible swap with K20A/ K20A2/ K20Z1/ K24A1 engines or cylinder heads.



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