Eventuri carbon intake system for BMW G29 Z4 M40i 2020+

Tailor-made carbon intake system / intake solution, for real power and torque increase for BMW E46 M3 from Eventuri

Eventuri intake for BMW G29 Z4 M40i

• Power increase: 17-25hp, 11-20ft-lb

The MK5 Supra Eventuri intake was designed to provide a less restrictive flow path for the turbo whilst maintaining low inlet temperatures. Heat and volume are the key 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 warms up the engine bay with the heat. High temperatures are detrimental to engine performance as the turbo would need to be charged with heated, less dense air so the only way to keep IATs to a minimum is with a fully enclosed intake. However, this results in a restriction with only one air feed to draw air from. During development we noticed an additional opening in the wheel arch area and took advantage of this by adding an additional feed in our air box. In addition, our sealed airbox also features a gold reflection heat shield to minimise radiant heat transfer from the exhaust manifold. To maximize volume, we cut out as much of the airbox as possible for potential strut bracing. The stock folded intake pipe was replaced with a smooth carbon pipe that also has a larger internal volume with an initial internal diameter of 111mm (4.4") and gently tapers to match the turbo inlet. The pipe 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 area than the stock filter.

Dyno test

Our BMW G29 Z4 M40i intake was independently tested by AMS on a Supra (same engine) with downpipe and software. Testing was repeated the same day with only the airbox swapped out for our intake. As you can see, there is a power gain for a large portion of the rpm range, with some areas showing gains of over 20 hp. This is the result of derestricting the intake path while maintaining low intake temperatures by keeping a fully sealed system.

Another dyno test was carried out in the UK by Evolve Automotive using a downpipe and a Stage 2 software tune. 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 hood closed.

Each intake system consists of:

• Carbon fiber airbox with dual feed
• Custom made high flow dry cone filter
• Carbon fiber intake pipe with 111mm opening ID
• CNC machined temperature sensor mount
• CNC machined vent adapter
• Heat shield with reflective gold underlay
• Laser cut stainless steel bracketsSilicon couplers with clamps according to OEM specifications

We receive a large number of custom orders and inquiries daily, so it is not always possible for us to have every item in stock at all times. If you need the item urgently, please contact our sales team here to check the stock before making your purchase.

We completely understand if you are unsure whether a part is compatible with your car. We therefore strongly recommend that you contact us here with your inquiry . Our friendly sales team will then contact you to confirm if this part is the correct part you are looking for.

All our products come with a standard 2 year warranty. However, this depends on the type of product. Further details can be found here .

At Upgrade my Car (R-Trade GmbH) we attach great importance to informing our customers comprehensively about the intended use of our products. Please note that unless otherwise stated, all of our products are specifically designed for professional racing use. These are intended solely for use in competition on circuits approved by an officially recognized racing organization. Please note that any use of our products other than these Terms, including recreational off-road driving, may potentially violate local, state or federal law. It is important to understand that Upgrade my Car (R-Trade GmbH) assumes no liability for the legality of using our products on public roads. The responsibility for compliance with applicable laws lies solely with the buyer. We strongly recommend that our customers familiarize themselves with the relevant legal regulations and comply with them before using our products.