Eventuri | Carbon Intake System | BMW Z4 M40i (G29) 2020+ 340hp B58

Facts:
Power increase: 17-25hp, 11-20ft-lb
Brand: Eventuri
Material: Carbon fibre
Installation: like original part (exchange)
Parts certificate: A certificate is available for this product for certain regions and vehicles (details below)

The MK5 Supra Eventuri intake is designed to provide a less restrictive flow path to the turbo while maintaining low inlet temperatures. Heat and volume are the most important considerations when designing an intake system for turbocharged engines. On the G29 Z4, the intake system is located next to the exhaust manifold, which quickly heats up the engine bay with heat. High temperatures are detrimental to engine performance as the turbo would have to be charged with heated, less dense air, so the only way to minimise IATs is to have a fully closed intake. However, this results in a restriction with only one air intake from which air is drawn. During development, we noticed an additional opening in the wheel arch area and utilised this by adding an additional inlet in our air box. In addition, our sealed airbox also features a gold reflective heat shield to minimise radiant heat transfer from the exhaust manifold. To maximise volume, we have made the airbox as large as possible with a recess for potential strut bracing. The standard folded intake pipe has been replaced with a smooth carbon pipe, which also has a larger internal volume with an initial internal diameter of 111 mm (4.4?) and tapers smoothly to match the turbo inlet. The pipe provides a smooth path from the filter to the turbo inlet. Finally, we use a customised high flow dry filter that has been ISO tested for filtration performance and has a larger filter area than the standard filter.

Dyno testing
Our intake for BMW G29 Z4 M40i was independently tested by AMS on a Supra (same engine) with downpipe and software. The tests were repeated on the same day, with only the airbox being replaced for our intake. As you can see, there is an increase in power for a large part of the rev range, with some areas showing an increase of over 20bhp. This is the result of derestricting the intake path whilst maintaining low intake temperatures by keeping a fully sealed system.

A further dyno test was carried out in the UK by Evolve Automotive with a downpipe and Stage 2 software tuning. This dyno graph shows the difference between a fully stock Supra and then with the stock airbox, downpipe and stage 2 tune and finally with the Eventuri, downpipe and stage 2 tune a maximum power gain of 25bhp. All runs were carried out with the bonnet closed.

Each intake system consists of:
Carbon fibre airbox with dual feed
Customised dry cone filter with high flow rate
Carbon fibre inlet pipe with 111 mm orifice ID
CNC machined temperature sensor bracket
CNC machined vent adapter
Heat shield with reflective gold backing
Laser-cut stainless steel brackets
Silicon coupler with clamps to OEM specification

Parts certificate
The manufacturer's specifications apply for installation. An existing certificate is no guarantee that the product can also be installed in the corresponding vehicle.

A certificate is available for this product for the following regions and vehicles:
* DE/AT: Vehicle registration document, field K --- CH/LI: Vehicle licence, field 24
Country Model Type approval*
DE/AT BMW M240i e1*2018/858*00123*..
DE/AT BMW M240i xDrive e1*2018/858*00123*..
DE/AT BMW M340i e1*2007/46*1947*..
DE/AT BMW M340i e1*2007/46*2017*..
DE/AT BMW M340i xDrive e1*2007/46*1947*..
DE/AT BMW M340i xDrive e1*2007/46*2017*..
DE/AT BMW M440i xDrive e1*2007/46*2126*..
DE/AT BMW Z4 M40i e1*2007/46*1949*..
DE/AT Toyota Supra e1*2007/46*1982*..

Compatible vehicles: