Skunk2 Racing is proud to announce the next generation of high performance intake manifolds for the '02-'05 Civic Si and '02-'06RSX/ RSX Type S, and/ or any swap using the K20A/ K20A2/ K20Z1/ K24A1 engines or cylinder heads has finally arrived! 
 
Skunk2 Honda K20A K24A1 Ultra Race Black Intake Manifold Style w/Silver Adapter is the much anticipated Ultra Race Intake Manifold is the result of years worth of R&D and building upon the performance legacy of our Pro Series Intake Manifold. Using the latest in CFD (Computational Fluid Dynamics) software; Skunk2 Racing has created a three-piece modular design that allows for easy disassembly, porting, and plenum volume changes through the use of a removable plenum and optional plenum spacers. The result is a design that is less restrictive, yielding both torque and power gains well over many of the competitors.
 
FEATURES:
Modular 3pc. Design w/ Removable Plenum
3.5L Plenum Volume** 
90mm Throttle Body Flange - Std. 5.0L Ford Pattern
6.0” Tapered Hi-Velocity Runners
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 - See Notes
 
**Optional Billet Aluminum Plenum Spacers Available in 1L or 2L Sizes
 
Note: The K Series Ultra "Street" Manifold uses the EARLY PRB/ PRC style cylinder head and throttle body mounting flange pattern but can be installed on the LATE RBC/ RBB style cylinder heads through the use of an aftermarket Water Bypass Adapter and associated throttle body or throttle body adapter.RACE APPLICATIONS ONLY - NOT INTENDED FOR STREET USE3.5 Liter > High Horsepower N/A and Forced Induction Applications to 600HP 4.5 Liter > 600-1000HP 5.5 Liter > 1,000HP UpUS Patent: D677700 ***Modification required on vehicles using OEM Idler Pulley & Water Pump Housing***
 
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May vary between actual products.
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