The results are improved airflow, an enhanced venturi effect, and both mid-range and top-end power 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. Skunk2’s Pro Series Intake Manifold for Honda's B-series non-VTEC engines features a larger plenum and oversized runners when compared to the ITR manifold for maximum horsepower and torque gains. 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. Not compatible with ’90-’95 throttle bodies featuring fast idle valve must use Skunk2 throttle body or similar.ħ0mm throttle body opening can be port-matched up to 75mm. Not compatible with ’90-’93 engines featuring EGR valve must use reprogrammed or later model ECU. It is the perfect bolt-on mod for someone who has already opened up the other restrictions in the intake and exhaust tract. 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.This intake manifold replaces the factory unit with a higher flowing, more efficient design, to reduce air flow restrictions leading into the engine, and make more power. 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. Skunk2 is a familiar name in the intake manifold business, with more than 10 years of experience designing, testing, and building them. 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. 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. Skunk2’s Evo Pro Series Intake Manifold is a simple bolt-on affair. 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. 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. ![]() 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. 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. Conventional large-plenum, short-runner intake manifolds provide top-end power gains but suffer in the mid-range. ![]() 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. 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. The intake manifold solution street-driven Evo VIII-IX owners have been waiting for is here.
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