The Skunk2 Ultra-Race Series Billet Intake Manifold, for Honda B16A/B17A/B18A/B18C/B20B/K20A Engines is the ultimate manifold for high horsepower street and race engines. Though the standard Ultra Manifold already allows for 8 injectors to be mounted using two fuel rails, we listened to the demands of racers for a Skunk2 Ultra Manifold with a top side 8-Injector single rail setup. All Ultra Manifolds feature tapered runners with trumpet profiled entries and plenums that have been designed and optimized using CFD and on the dyno. The short tapered high-volume runners combined with an oversized plenum runners favors maximum top end power over lower end power and response. The best part about this project was that the hard part was completed years ago when we spent countless hours on the dyno developing the original cast Skunk2 Ultra Manifolds. There was no reason to mess with a great and proven design.

The manifold features the same Skunk2 Ultra high flowing runners and modular plenum design, which allows plenum volume to easily be increased using simple spacers, and the runners can be freely ported for additional flow and volume. Other than being made from billet, the only revisions we made were the injector mounting area. The versatility of this manifold allows enthusiasts and engine builders to tune the manifold combination to best suit their needs. Indeed, the billet coolness-factor combined with the fact this proven Ultra manifold design is only produced in limited quantities which makes this a special offering. Act now while supplies last.

 

Skunk2 Ultra Race Series K-Series Side Feed Billet Manifold

Skunk2 Part# X307-05-0350
The Skunk2 Ultra-Race Series Billet Intake Manifold, for Honda K and B series engines is the ultimate manifold for high-horsepower street and race engines. Unlike the standard Ultra Manifold, the Billet Ultra was designed for 8-injectors mounted top-side with a single fuel rail.
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Skunk2 Ultra Race B-Series Side Feed Billet Intake Manifold

Skunk2 Racing Part# X307-05-0100
The Skunk2 Ultra-Race Series Billet Intake Manifold, for Honda B series engines is the ultimate manifold for high-horsepower street and race engines. Unlike the standard Ultra Manifold, the Billet Ultra was designed for 8-injectors mounted top-side with a single fuel rail.
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Skunk2 Ultra Race K-Series Center Feed Billet Manifold

Skunk2 Racing Part# X307-05-0400
The Skunk2 Ultra-Race Series Billet Intake Manifold, for Honda K and B series engines is the ultimate manifold for high-horsepower street and race engines. Unlike the standard Ultra Manifold, the Billet Ultra was designed for 8-injector mounted top-side with a single fuel rail.
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Skunk2 Ultra Race B-Series Center Feed Billet Manifold

Skunk2 Racing Part# X307-05-0200
The Skunk2 Ultra-Race Series Billet Intake Manifold, for Honda K and B series engines is the ultimate manifold for high-horsepower street and race engines. Unlike the standard Ultra Manifold, the Billet Ultra was designed for 8-injectors mounted top-side with a single fuel rail.

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Skunk2 Ultra Race K-Series Billet Runner w Fuel Rail

Skunk2 Racing Part# X907-05-0350
For those who already have an Ultra Race Plenum or want to make their own, Skunk2 Ultra Billet Race Runners are available separately.
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Skunk2 Ultra Race B-Series Billet Runner w/Fuel Rail

Skunk2 Racing Part# X907-05-0100
For those who already have an Ultra Race Plenum or want to make their own, Skunk2 Ultra Billet Race Runners are available separately.

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Skunk2 composite fuel rail B16/ B18C

Skunk2 Racing Composite Fuel Rail Part # 350-05-5000
Fits Acura Integra 90-01 (B18); and Honda Civic SI 99-00 (B16), Del Sol VTEC 93-97(B16)
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Skunk2 Composite Fuel Rail K20/ K24

Skunk2 Part # 350-05-5010
Supports up to 1,200 hp.
 Integrated -8 AN inlet and outlet for easily customized fuel lines.
 Features additional 1/8-inch NPT fuel pressure ports
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Skunk2 Composite Fuel Rail K20Z3*

Skunk2 Part# 350-05-5015

*Includes Special additional hardware for 06-11 Civic Si

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Recommended for high-performance naturally aspirated engines up to 450hp, and forced induction engines from 650hp and up.

•  Best in Class Power Increase
•  Single Rail Top Mount 8-Injectors
•  Tapered Hi-Velocity CNC Billet Intake Runners
•  Modular Design with Removable Cast Plenum
•  Plenum Volume Can Be Adjusted Using Spacers
•  90mm Throttle Body Flange - Std. 5.0 Ford Bolt Pattern
•  Thermal Gasket Included

Please note due to the current high demand and low production rate of these intake manifolds. All purchases are considered pre-order expected to ship in 4 to 8 weeks from the date of purchase. If you require something within a specific time frame please contact us before placing your order to verify availability.