Skunk2 Honda B16A, B17A, B18A, B18C And B20A Applications - Ultra Race Intake Manifold - B VTEC - Silver Adapter

The Skunk2 Ultra-Race Series Intake Manifold for Honda B16A/B17A/B18A/B18C/B20A Engines is the preferred manifold for high horsepower street and race engines. The manifold is designed with a universal flange that will bolt up to all VTEC and Non-VTEC B-series engines. 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 Skunk2 Ultra Race Manifold is cast as a two-piece manifold from aircraft grade A356 aluminum, and features provisions to mount secondary injectors underneath. The modular design means the plenum volume can easily be increased using simple spacers, and the runners can be freely ported for additional flow and volume. The versatility of this manifold allows enthusiasts and engine builders to tune the manifold combination to best suit their needs.

Recommended for high-performance naturally aspirated engines up to 450hp, and turbo/supercharged engines from 650hp and up.

Each manifold is vacuum tested and finished-off with our Signature Skunk2 Pro-Series nameplate.

Features:

Lightweight 356 Aluminum Alloy Construction

Modular Design with Removable Plenum

3.5L Plenum Volume

90mm Throttle Body Flange - Std. 5.0L Ford Pattern

Tapered 6.5" High-Velocity Runners w/ Raised 87mm Velocity Stack Entries

Generously Cast Runner Walls for Porting

Provisions Secondary Fuel Rail & Injectors

4 x 1/8” NPT, 2 x 1/4” NPT and 1 x OEM AIT Port

Hi-Grade Mounting Hardware

**Optional Billet Aluminum Plenum Spacers Available in 1L or 2L Sizes

RACE APPLICATIONS ONLY - NOT INTENDED FOR STREET USE

3.5 Liter > High Horsepower N/A and Forced Induction Applications to 600HP

4.5 Liter > 600-1000HP

5.5 Liter > 1,000HP Up

Optional Billet Aluminum Plenum Spacer Available:

Ultra Race Plenum Spacer Silver - 1L (P/N 907-05-9001)

Ultra Race Plenum Spacer Black - 1L (P/N 907-05-9051)

Ultra Race Plenum Spacer Silver - 2L (P/N 907-05-9002)

Ultra Race Plenum Spacer Black - 2L (P/N 907-05-9052)

Recommendations:

Fuel Rails:

Ultra Race Primary Fuel Rail - (P/N 350-05-6000)

Ultra Race Secondary Fuel Rail - (P/N 350-05-6010)

Throttle Bodies:

Pro Throttle Body 90mm Silver - (P/N 309-05-0900)

Pro Throttle Body 90mm Black - (P/N 309-05-0905)

Sensors:

TPS Sensor - (P/N 352-05-1400)

Map Sensor 2.5 Bar - (P/N 352-05-1525)

Map Sensor 4 Bar - (P/N 352-05-1510)

Thermal Gaskets:

Ultra Intake Manifold Gasket - (P/N 372-05-0265)

Throttle Body Gasket Pro 90mm - (P/N 372-99-0090)

Fits
Honda B16A/B   
Honda B17A   
Honda B18A   
Honda B18B   
Honda B18C   
Honda B20B   
Honda B20Z