Skunk2 Honda B16A, B16B, B17A And B18C Applications - Ultra Street Intake Manifold - B VTEC

The Skunk2 Ultra-Street Series Intake Manifold for Honda B16A/B17A/B18A/B18C/B20A Engines is a high flowing manifold that bridges the performance gap between Skunk2s Pro Series and Ultra-Race series manifold. 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. When compared to the Skunk2 Ultra Race, Ultra Street runners are longer with less taper, and the Ultra Street plenum has a smaller volume; this combination may limit ultimate peak power in favor for better response and better average power from mid to high.

The Skunk2 Ultra Street Manifold is cast as a two-piece manifold from aircraft grade A356 aluminum. 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 275hp, and turbo/supercharged engines up to 750hp

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

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

2 x 1/8" NPT and 2 x 1/4" NPT Accessory Ports

Hi-Grade Mounting Hardware

Gasket Included

Will not work with factory throttle body. A minimum of a 68mm throttle body is required.

Optional Billet Aluminum Plenum Spacer Available in .5L Size

Ultra Street Plenum Spacer Silver (P/N 907-05-9100)

Ultra Street Plenum Spacer Black (P/N 907-05-9101)

Recommendations:

Fuel Rails:

Composite Fuel Rail - (P/N 350-05-5000)

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

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

Throttle Bodies:

Alpha Throttle Body 70mm - (PN 309-05-1050)

Pro Throttle Body 68mm Silver - (P/N 309-05-0040)

Pro Throttle Body 68mm Black - (P/N 309-05-0045)

Pro Throttle Body 70mm Silver - (P/N 309-05-0050)

Pro Throttle Body 70mm Black - (P/N 309-05-0055)

Pro Throttle Body 74mm Silver - (P/N 309-05-0060)

Pro Throttle Body 74mm Black - (P/N 309-05-0065)

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 Alpha 68mm - (P/N 372-05-0040)

Throttle Body Gasket Alpha 70mm - (P/N 372-05-0050)

Throttle Body Gasket Pro 68mm - (P/N 372-05-0055)

Throttle Body Gasket Pro 70mm - (P/N 372-05-0060)

Throttle Body Gasket Pro 74mm - (P/N 372-05-0070)

US Patent No. D674,408

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