Does the Eventuri hybrid carbon intake system fit both the E85 and E86 Z4M?

Yes. The Eventuri E85 E86 Z4M hybrid carbon intake system is designed to fit both the E85 roadster and E86 coupe variants of the BMW Z4M equipped with the S54 engine. The system replaces the factory airbox assembly directly, with no permanent modifications required to fit either body style.

What power gains can I expect from the Eventuri Z4M intake system?

Eventuri's own testing data shows gains of 7 to 10 horsepower and 5 to 8 lb-ft of torque on the BMW Z4M with the S54 engine. Results are based on dyno comparisons against the stock airbox under controlled conditions. Individual results may vary depending on vehicle condition, tune, and other modifications.

What materials are used in the Eventuri E85 E86 Z4M hybrid carbon intake system?

The airbox uses a hybrid construction with a hand-laid carbon fiber outer shell and a smooth inner liner to reduce heat absorption and turbulence. The inlet pipe is polyurethane, shaped to maintain consistent airflow velocity. A high-flow foam filter is included and sized specifically for this system.

Does the Eventuri Z4M intake require professional installation?

The system installs with standard hand tools and requires no permanent modifications to the vehicle. Eventuri provides installation instructions and the kit ships with all necessary mounting hardware. Professional installation is recommended if you are not familiar with intake system work on the S54 engine, though an experienced DIY mechanic can complete the job.

What is included in the Eventuri E85/E86 Z4M hybrid carbon airbox kit?

The kit includes the hybrid carbon fiber airbox, a polyurethane inlet pipe, a high-flow foam filter, and all required mounting hardware. It is a complete, ready-to-install system designed to replace the factory airbox without the need to source additional components.

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BP PRICING DIFFERENCE

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Description

Eventuri Carbon Turbo Tube for Mercedes-AMG A 250, A 35, CLA 35, GLA 35, and GLB 35 (2023 facelift)

The factory turbo tube on the 2023 hybrid facelift A 35, A 250, CLA 35, GLA 35, and GLB 35 uses a ridged flexible section at the airbox side; that corrugated stretch is a known flow restriction that introduces turbulence before air ever reaches the turbo. The Eventuri Carbon Turbo Tube eliminates that flexible section entirely, replacing it with a solid prepreg carbon fiber tube that runs the full length from intake to turbo inlet. Internal volume is also increased over the OEM piece, giving airflow a less restricted path through the entire assembly. To manage the natural movement of the engine without cracking or binding, Eventuri designed a “floating” tube arrangement that allows the carbon tube to move within the airbox housing rather than fighting it. Where the tube meets the turbo housing, a silicone coupler with an internal thermal separator keeps heat from the metal housing out of the carbon tube. The multiple breather connections at the rear of the tube are handled by a CNC-machined block, which consolidates the connections while maintaining a smooth interior surface so airflow through that section stays clean. The turbo-end profile was developed using CFD analysis to reduce turbulence at the entry point, and every component in the kit is built to the same standard as the carbon tube itself.

Comparison with OEM

The OEM tube narrows through the mid-section as it routes past the engine. Eventuri increased the tube’s internal volume to reduce that restriction, and by eliminating the flexible section entirely, airflow through the tube stays more laminar, which lowers the drag load on the turbo. Engine movement is handled at the airbox instead, where an expanding rubber seal absorbs vibration.

Machined Breather Block

The breather system uses three attachment points; two of them are complex and demand precise fitment. Eventuri addresses this with a CNC-machined fitment block that allows the breather system to connect exactly as the OEM setup does.

Turbo Coupler

The coupler at the turbo connection mirrors the OEM flange geometry, locking into the groove around the turbo housing for a secure, rattle-free fit. Internal steps within the coupler match the wall thicknesses of both the carbon tube and the turbo, so the transition between the two is flush and the flow path stays uninterrupted.

Features

Prepreg carbon fiber construction
Solid tube design, no flexible mid-section
Increased internal volume over OEM
CFD-optimized turbo-end profile
Floating tube arrangement within the airbox
Expanding rubber seal at the airbox to absorb engine movement
Silicone coupler with internal thermal separator
Coupler locks into OEM turbo groove
Internal steps in coupler to match wall thicknesses of carbon tube and turbo
CNC-machined breather fitment block
Three OEM breather attachment points accommodated
Smooth internal surface throughout

What’s Included

Prepreg carbon tube
CNC-machined breather block
CNC-machined MAP boss
CNC-machined reinforcement ring
Custom turbo coupler with oil resistant lining
Marine grade stainless steel hose clamps

Applications

Mercedes-AMG A 35: W117 | 2023-present | M260 2.0L I4 turbo
Mercedes-AMG A 250: W177 | 2023-present | M260 2.0L I4 turbo
Mercedes-AMG CLA 35: C118 | 2023-2025 | M260 2.0L I4 turbo
Mercedes-AMG GLA 35: H247 | 2023-present | M260 2.0L I4 turbo
Mercedes-AMG GLB 35: X247 | 2023-2026 | M260 2.0L I4 turbo

Notes

Some images show Eventuri’s intake system available separately
Designed to fit Eventuri’s intake system only

Frequently Asked Questions

Why does Eventuri remove the flexible section from the OEM tube? The factory tube uses a ridged, corrugated flexible section at the airbox side that restricts airflow and introduces turbulence before air reaches the turbo. Eventuri replaces the entire tube with a solid prepreg carbon fiber unit, which keeps airflow more laminar and reduces drag on the turbo. Engine movement is managed at the airbox with an expanding rubber seal rather than relying on a flexible tube section.
How does the tube stay connected to the turbo? A custom silicone coupler locks into the groove around the OEM turbo housing, mirroring the factory flange geometry for a secure fit. Internal steps within the coupler align with the wall thicknesses of both the carbon tube and the turbo housing, keeping the transition flush and the flow path uninterrupted. The coupler also includes an oil-resistant lining and an internal thermal separator to limit heat transfer from the metal housing into the carbon tube.
What is the CNC-machined breather block for? The M260 engine platform breather system has three attachment points; two require precise fitment. Eventuri’s CNC-machined block consolidates all three connections, replicating OEM fitment while maintaining a smooth internal surface so airflow through that section is not disrupted.

About Eventuri

Eventuri was founded by a team of engineers and enthusiasts with a background in Aeronautics and tuning all sharing a passion for cars and performance. After owning various intakes over many years for their own cars and being disappointed with the gains which seldom lived up to their claims they decided to take things into our own hands and rewrite the book. To set a new benchmark in intake design and technology, above all to engineer systems which provide real gains and then to publish genuine figures. Their systems are extensively developed using cutting edge design, testing and prototyping methods. With a focus on performance, each design undergoes CFD analysis and is then validated at the prototype stage through volumetric airflow, intake temperature and extensive dynamometer testing. They strive to publish all the development information to illustrate the depths they go to in bringing an intake from concept to reality. Only the best materials are selected for each component even down to the choice of fasteners and fixings in order to ensure that the quality of the end product is second to none. After many years of disappointment with the usual aftermarket intakes, they are proud to be raising the bar and creating intake systems which are setting a new standard and genuinely improve the performance of your vehicle.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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Eventuri Carbon Turbo Tube for Mercedes-AMG A 250, A 35, CLA 35, GLA 35, and GLB 35 (2023 facelift) [EVE-A35FL-CF-CHG]

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Eventuri Carbon Turbo Tube for Mercedes-AMG A 250, A 35, CLA 35, GLA 35, and GLB 35 (2023 facelift)

Comparison with OEM

Machined Breather Block

Turbo Coupler

Features

What’s Included

Applications

Notes

Frequently Asked Questions

About Eventuri

Reviews