Conversion Kit – Suit Turbosmart Ultra-Gate38 (38mm), Comp-Gate40 (40mm) and Hyper-Gate45 (45mm) External Wastegates. Provides an Upgrades top cap to allow base pressure springs of up to 40psi. Includes springs of 35 PSI base pressure in the kit and all accessories to convert your existing WG38, WG40 or WG45 to a HP Gate quickly and easily.
Conversion Kit – Suit Turbosmart Ultra-Gate38 (38mm), Comp-Gate40 (40mm) and Hyper-Gate45 (45mm) External Wastegates. Provides an Upgrades top cap to allow base pressure springs of up to 40psi. Includes springs of 35 PSI base pressure in the kit and all accessories to convert your existing WG38, WG40 or WG45 to a HP Gate quickly and easily.
907-05-9101
The Skunk2 Racing Plenum Spacer is used to increase the internal volume of the Ultra "Street" Intake Manifolds by .50 Liters.
INCLUDES:
.50L Billet Aluminum Spacer
Longer Socket Head Hardware
Gaskets
307-06-0500
Match with a Skunk2 Pro Series Throttle Body for an easy 30+ hp gain.
-NPT threaded ports
- Hardware with plugs or barbed fittings for vacuum purposes
- Dipstick Relocator
2003 - 2005 Mitsubishi Lancer Evolution VIII (2.0L Turbo)
2006 - 2007 Mitsubishi Lancer Evolution IX (2.0L Turbo)
307-05-0260
Not compatible with OEM D-series throttle body. Must use larger-bore Skunk2 throttle body or similar.
Not directly compatible with Civic Wagon or Wagovan; clearance modifications required.
Not directly compatible with '96-'00 Civic; brake proportioning valve and fuel filter clearance required.
Ideal for turbocharged and naturally aspirated applications.
66mm throttle body opening can be port-matched up to 70mm.
Limited-edition, Black Series finish.
Ideal for turbocharged and naturally aspirated applications.
70mm throttle body opening can be port-matched up to 74mm.
FEATURES:
Modular 2pc. Design w/ Removable Plenum
Rotatable Plenum Allows Driver-side or Passenger-Side Throttle Body Mounting
1.8L Plenum Volume
Tapered 6.85" Long High-Velocity Runners w/ Raised Velocity Stack Entries
Generously Cast Runner Walls for Porting
71mm Throttle Body Opening
Lightweight 356 Aluminum Alloy Construction
Hi-Grade Mounting Hardware
Thermal Gasket Included
2 x 1/4" NPT and 2 x 1/8" NPT Accessory Ports
**Optional Billet Aluminum Plenum Spacer Available in .5L SizeFitment:
2002 - 2005 Honda Civic (2.0L Si)
2002 - 2006 Acura RSX (2.0L Base/Type S)
Content
The intake manifold solution street-driven Evo VIII-IX owners have been waiting for is here. Skunk2’s newly designed Evo Pro Series Intake Manifold was designed with “street enthusiasts” who utilize turbochargers as small as the factory unit in mind and want more power without sacrificing mid-range performance. Skunk2’s all-new, cast-aluminum Evo Pro Series Intake Manifold—which was tested and developed on the company’s own Evo Time Attack race car—is a direct-fit replacement and offers significant horsepower and torque gains without compromising mid-range power output. Conventional large-plenum, short-runner intake manifolds provide top-end power gains but suffer in the mid-range. Not Skunk2’s. Its all-new Pro Series Intake Manifold features OEM-length runners with larger bores and a special tapered design as well as a larger, tapered plenum that together preserve mid-range power but increase and accelerate airflow to allow for significant top-end gains. Peak gains as high as 33+ whp have been realized when paired with Pro Series Throttle Bodies with positive results across the board, beginning as low as 3,200 rpm. Pro Series Intake Manifolds also feature thicker castings when compared to the OEM piece, which leaves plenty of room for porting, and each runner exit is machined and hand-finished to best match the cylinder head’s ports. The Pro Series Intake Manifold’s unique design increases wave scavenging effects at the engine’s ideal operating range, which allow for a broad increase in usable power. Skunk2’s Evo Pro Series Intake Manifold is a simple bolt-on affair. Unlike other intake manifolds, Skunk2’s incorporates the factory configuration, leaving the throttle body in its original location, which means the original intercooler piping and hoses can be reused. Pro Series Intake Manifolds also include the necessary provisions for the Evo’s brake booster line, MDP sensor, and vacuum accessories (EGR valve excluded), and incorporate two additional 1/8-inch NPT threaded ports, which can be used for any number of vacuum/boost-related devices such as gauges, boost controllers, and more. Each manifold comes equipped with plugs and fittings as well as a dipstick k relocator. Skunk2 is a familiar name in the intake manifold business, with more than 10 years of experience designing, testing, and building them. Similar to OEM manifolds, Skunk2’s Pro Series Intake Manifolds are shell-molded from 356-aluminum, CNC-machined for superior strength, a precise fit, and a high-quality finish, and vacuum-tested for quality. Each manifold is molded with smooth transitions from the throttle body opening to the plenum to the runners with clean parting lines for an optimal finish, both inside and out and features a genuine Skunk2 nameplate.
More than a decade ago, Skunk2's engineers revolutionized Honda performance by creating the first-ever, high-flow, cast aluminum intake manifold. Skunk2’s Pro Series Intake Manifold for most Honda SOHC D-series engines features a larger plenum and oversized runners when compared to the OEM version for maximum horsepower and torque gains. Instead of producing a manifold with a significantly oversized plenum and excessively short runners that would sacrifice mid-range power, the Pro Series manifold was designed for the “street enthusiast” who wants more power but doesn’t want to sacrifice mid-range performance to get it. The results are improved airflow, an enhanced venturi effect, and both mid-range and top-end power gains.
Skunk2’s cast-aluminum Pro Series Intake Manifolds for Honda’s D-series engines are a direct-fit replacement for most D-series engines and are compatible with all factory sensors. Pro Series Intake Manifolds offer horsepower and torque gains greater than competitors’ manifolds but without compromising mid-range power output. The design incorporates specially tapered runners as well as a larger, tapered plenum that together preserve mid-range power but increase and accelerate airflow to allow for significant top-end power gains. Pro Series Intake Manifold runner exits are also machined to best match the cylinder head’s ports. Skunk2’s Pro Series Intake Manifold’s shape and design also increases wave scavenging effects at the engine’s ideal operating range, which allow for a broad increase in usable power.
Skunk2 is a familiar name in the intake manifold business, with more than 10 years of experience designing, testing, and building them. Similar to OEM manifolds, Skunk2’s Pro Series Intake Manifolds are shell-molded from 356-aluminum, CNC-machined for superior strength, a precise fit, and a high-quality finish, and vacuum-tested for quality. Each manifold is molded with smooth transitions from the throttle body opening to the plenum to the runners with clean parting lines for an optimal finish, both inside and out and features a genuine Skunk2 nameplate.
More than a decade ago, Skunk2’s engineers looked to the popular Integra Type R intake manifold for inspiration and went back to the drawing board. Skunk2’s Pro Series Intake Manifold in its signature Black Series finish for Honda's B-series VTEC engines (non-GS-R) features a larger plenum and oversized runners when compared to the ITR manifold for maximum horsepower and torque gains. Instead of producing a manifold with a significantly oversized plenum and excessively short runners that would sacrifice mid-range power, the Pro Series manifold was designed for the “street enthusiast” who wants more power but doesn’t want to sacrifice mid-range performance to get it. The results are improved airflow, an enhanced venturi effect, and both mid-range and top-end power gains.
Skunk2’s cast-aluminum Pro Series Intake Manifolds for Honda’s B-series engines are a direct-fit replacement for all B-series engines thanks to three separate flange designs and are compatible with all factory sensors and throttle bodies as large as 75mm. Pro Series Intake Manifolds offer horsepower and torque gains greater than competitors’ manifolds but without compromising mid-range power output. The design incorporates specially tapered runners as well as a larger, tapered plenum that together preserve mid-range power but increase and accelerate airflow to allow for significant top-end power gains. Pro Series Intake Manifold runner exits are also machined to best match the cylinder head’s ports. Skunk2’s Pro Series Intake Manifold’s shape and design also increases wave scavenging effects at the engine’s ideal operating range, which allow for a broad increase in usable power.
Skunk2 is a familiar name in the intake manifold business, with more than 10 years of experience designing, testing, and building them. Similar to OEM manifolds, Skunk2’s Pro Series Intake Manifolds are shell-molded from 356-aluminum, CNC-machined for superior strength, a precise fit, and a high-quality finish, and vacuum-tested for quality. Each manifold is molded with smooth transitions from the throttle body opening to the plenum to the runners with clean parting lines for an optimal finish, both inside and out and features a genuine Skunk2 nameplate.
Notes:
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 the Skunk2 DBW Throttle Body Adapter: (PN# 309-05-0120)
Installation on the '02-'05 Civic Si (EP3) requires several modifications. The radiator core support must be trimmed, the wiring for the TPS sensor may need to be extended, and clearance between the TPS and radiator hose may require custom upper hose or modification for the radiator.
The much anticipated Ultra "Street" Intake Manifold for the '02-'05 Civic Si and '02-'06 RSX/ RSX Type S, and/ or any swap using the K20A/ K20A2/ K20Z1/ K24A1 engines or cylinder heads has finally arrived!
The Ultra Series is years of research and development, culminated in a multi-piece cast aluminum intake manifold that offers advantages that only a modular design could allow. Using the latest in CFD (Computational Fluid Dynamics) software; Skunk2 Racing has created a two-piece modular design that allows for easy disassembly, porting, and plenum volume changes through the use of a removable plenum lid and optional plenum spacers. In addition to CFD testing, the Ultra Series Intake Manifold has undergone extensive in-house dyno testing which has led to a design that is less restrictive, yielding both torque and power gains well over many of the competitors.
Skunk2 Racing Ultra Street Intake Manifolds are cast-aluminum, manufactured from high-grade 356 aluminum alloy for strength and lightweight. Each manifold is CNC-machined for a precise fit, and individually inspected for quality assurance. The Ultra Series Street manifold features a generous 71mm throttle body opening and is constructed with thick walls at entry, minimizing concerns of breakthrough when port matching. Intense planning and design went into the plenum to distribute even airflow to all four cylinders under dynamic load conditions. Placement and design of the velocity stacks were rigorously flow tested to ensure maximum delivery of air to the cylinder. Large velocity stack raised bell mouth entries lead to 6.85” long intake runners with smooth transitions allowing the Ultra Street Intake Manifold to really move some air!
Skunk2 Racing Ultra Street Intake Manifolds are designed to be used in modified naturally aspirated applications as well as mild turbo/supercharged setups.
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