Eventuri BMW G20 G21 M340i B58 carbon air intake

Product description

Eventuri carbon cold air intake BMW G20 G21 B58

Mounting for the G20 G21 M340i

The BMW G20 G21 B58 Eventuri intake is designed to give the turbocharger a less restrictive flow path while keeping intake temperatures low. Heat and volume are the most important considerations when designing an intake for turbocharged engines. In the G20 G21, the intake system is located next to the exhaust manifold, which quickly warms up the engine compartment. High temperatures are detrimental to engine performance because the turbo would have to build up boost using heated, less dense air, so the only way to ensure that IATs are kept to a minimum is to fully sealed intake. However, this results in a limitation with only one supply of air from which air can be drawn. During development, we noticed an additional opening in the wheel arch and took advantage of this by adding a secondary feed to our airbox. In addition, our sealed airbox also features a gold reflective heat shield to minimize radiant heat transfer from the exhaust manifold. To maximise volume we have made the airbox as large as possible with a cut-out for any strut braces. The standard convoluted intake tube has been replaced with a smooth carbon tube which is also larger in internal volume with a starting internal diameter of 111mm (4.4″) which gradually narrows towards the turbo inlet. The tube provides a smooth path from the filter to the turbo inlet. Finally, we use a custom high-flow dry filter that is ISO tested for filtration performance and has a larger filter surface area than the standard filter.