Description
WRC-style Dual Plenum 440 intake manifold fabrication kit
The kit is suitable for intake manifold projects on 3- and 4-cylinder engines, as well as V6 and V8 engines. V engines require two kits.
The two-chamber Dual Plenum design is intended to distribute charge air evenly between the cylinders. The tapered tube and plenum chamber work together to direct air through the tube’s flow slot into the plenum chamber and onwards to the engine intake ports.
The components are made from lightweight, strong, corrosion-resistant aluminium with good weldability. During fabrication, the tapered tube can be positioned to face forwards or backwards and to the right or left, to suit the engine bay and charge-pipe layout.
Included in the kit
- plenum chamber
- tapered tube
- flow-optimised end cap for the narrow end of the tapered tube
- inlet cover plate
- flow-slot support bar for high boost pressures
- detailed fabrication and welding instructions
An engine-specific intake manifold is built by selecting suitable intake manifold flanges, runners, velocity stacks and a throttle-body flange separately.
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More than 3,000 MWS Motorsport Dual Plenum solutions have been supplied for enthusiast, road and motorsport projects.









