*Some aftermarket downpipes may have 2.5″ stock flange size. Be sure to check before ordering.
Our 3″ exhaust is made entirely of 304 Stainless Steel. It is available in 3″ flange for aftermarket 3″ downpipe like ours or stock flange for OEM downpipe. It features 3 real mufflers and tips. The exhaust transitions from 3″ to 2.5″ after the split to create pressure and push exhaust out the side mufflers and reducing noise. All mufflers are straight through design reduce backpressure for maximum power. Comes with new rubber hangers for muffler hangers.
*Some aftermarket downpipes may have 2.5" stock flange size. Be sure to check before ordering.
Our 3" exhaust is made entirely of 304 Stainless Steel. It is available in 3" flange for aftermarket 3" downpipe like ours or stock flange for OEM downpipe. It features 3 real mufflers and tips. The exhaust transitions from 3" to 2.5" after the split to create pressure and push exhaust out the side mufflers and reducing noise. All mufflers are straight through design reduce backpressure for maximum power. Comes with new rubber hangers for muffler hangers.
FEATURES:
Modular 2pc. Design w/ Removable Plenum
Rotatable Plenum Allows Driver-side or Passenger-Side Throttle Body Mounting
1.8L Plenum Volume **
Tapered 8.72" Long High-Velocity Runners w/ Raised Velocity Stack Entries
Generously Cast Runner Walls for
Porting 74mm Throttle Body Opening
Lightweight 356 Aluminum Alloy Construction
2 x 1/8" NPT and 2 x 1/4" NPT Accessory Ports
Hi-Grade Mounting Hardware
Thermal Gasket Included
Will not work with factory throttle body. A minimum of a 68mm throttle body is required.
307-05-0270
Ideal for turbocharged and naturally aspirated applications.
Eliminated secondary butterflies for improved airflow and horsepower.
70mm throttle body opening can be port-matched up to 74mm.
307-06-0505
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
350-05-6010
Engineers at Skunk2 Racing have developed a Secondary Fuel Rail for the popular Ultra Race Intake Manifold.
FEATURES:Manufactured from Billet 6061 Aluminum
Hard Anodized for Corrosion Resistance
Large .669" Internal Bore
-8 ORB Ports
Supports Up to 1,200HP
Compatible w/ E85 and Methanol. Requires Remote Mount Regulator.
309-05-1050
FEATURES:
Precision Die-Cast Aluminum
Fine Shot-Blasted Surface Finish
Precision Machined Brass Throttle Plate
Compatible w/ OEM Throttle Cable
Sealed Ball Bearings for Smooth Operation
New Throttle Body Gasket and Hardware
Idle Adjustment Screws for Fine Tuning
Content
The much anticipated Ultra "Street" intake manifolds for the Honda B16A/ B17A and B18C engine or VTEC cylinder heads!
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 74mm 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 8.72” 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.
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 for Honda's B-series VTEC engines (GS-R only) 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.
The intake manifold solution street-driven Evo VIII-IX owners have been waiting for is here. Skunk2’s Evo Pro Series Intake Manifold in its signature Black Series finish 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.
Skunk2 is proud to introduce the 70mm Alpha Series Throttle Body for Honda B16/ B17/ B18/ B20/ D15/ D16/ F20/ F22/ F23/ H22 and H23 engines in its exclusive, fine shot-blasted surface finish. Skunk2’s Alpha Series Throttle Body is designed to be used with Skunk2’s Pro Series Intake Manifolds as well as OEM and other aftermarket intake manifolds for bolt-on horsepower and torque gains by maximizing engine airflow, all at a competitive price.
A larger throttle body is key to producing additional power throughout the powerband on modified engines with increased airflow demands and the Skunk2’s 70mm Alpha Series Throttle Body delivers! Sealed ball bearings, a precision machined throttle plate and a honed oversized bore insures smooth operation on the most aggressive naturally aspirated and forced induction applications.
NOTE: Due to Larger Diameter... You Must Use A Skunk2 Pro Series Intake Manifold or Make Adjustments to Intake Manifold Throttle Body Flange to Match Bore and Keep IAC (Idle Air Control) Passage Separate. Not compatible with B18C GS-R intake manifold. Not compatible with D Series engines featuring down-flow intake manifolds. Manual Transmission Only.
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