Crest Automotive Tuning - A) ENGINE PERFORMANCE (See also forced induction & remapping sections)

Product Code: evecsl46z4man

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Evolve Automotive products' development, quality and performance is well know and respected globally.
These excellent CSL style carbon airboxes are no exception, offering significant power increase and a gorgeous induction note. Please see videos by scrolling down further.

Price includes ALL the required BMW OEM fitting parts and temp sensor kit for manual transmission cars
SMG cars require extra parts, please see seperate listing.
We can also supply the airbox only at reduced cost, again please see seperate listing.

Available for the E46 M3 and Z4M S54 engines.

Software also available at separate cost, please enquire.

WE WILL BEAT ANY OTHER GENUINE QUOTE

Please specify your exact model and transmission type when ordering.

PLEASE NOTE: weight quoted below refers to shipping / volumetric weight and not actual product weight.

Estimated Volumetric Shipping Weight : 10.00 Kg

Product Code: evecsl46z4smg-1

Click to Enlarge

Evolve Automotive products' development, quality and performance is well know and respected globally.
These excellent CSL style carbon airboxes are no exception, offering significant power increase and a gorgeous induction note. Please see videos by scrolling down further.

Price includes ALL the required BMW OEM fitting parts and temp sensor kit for SMG transmission cars
For Manual transmission cars, please see separate listing.
We can also supply the airbox only at reduced cost, again please see separate listing.

Available for the E46 M3 and Z4M S54 engines.

Software also available at separate cost, please enquire.

Please specify your exact model and transmission type when ordering.

WE WILL BEAT ANY OTHER GENUINE QUOTE

PLEASE NOTE: weight quoted below refers to shipping / volumetric weight and not actual product weight.

Estimated Volumetric Shipping Weight : 10.00 Kg

Product Code: evez4mint

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The Design Brief:

- Increased HP and Torque under full throttle
- Improved driving under partial load and throttle response
- Uses high quality engineered parts
- Is a fully engineered complete intake solution
- Adds to the driving experience with a purposeful induction note and no loss of low rpm smoothness
- Affordable
- Standalone upgrade which requires no tuning or MAF removal

The development of the S54 intake system started in early 2014 with preliminary tests carried out on 4 individual cars. Some cars were stock, others had performance parts fitted.

Our aim was to bring a high quality kit to the market with the REAL results. After many months of development we are happy to announce the Eventuri Intake System for the S54 engine and now specifically for the Z4M, which meets our design brief and provides genuine improvement not just in peak power but in throttle response and smoothness.

The Eventuri Difference

The Eventuri system uses our unique Carbon fibre Housing which provides an aerodynamically efficient airflow path from the filter to the MAF tube. Most intake systems use a cone filter with a type of shroud as a heat shield. In this configuration the filter is doing the job of shaping the airflow to the MAF tube and this is where restrictions arise as the airlfow has to negotiate a sharp reduction in diameter from the base of the filter to the MAF tube. In the Eventuri system, the filter is inverted and decoupled from the MAF tube - the carbon housing itself dictates the shape of the airflow by smoothly reducing in diameter from the filter to the MAF tube. Here - the entire carbon fibre housing is a Venturi where the airflow increases in velocity as the cross sectional area smoothly reduces. As this is essentially a large funnel - the airflow remains laminar and therefore minimises the drag of the system.

The result is an immediate improvement in throttle response, smoother power delivery and more power across the rpm range - not just at the peak. Furthermore - this intake releases the engine note for a more pronounced induction roar under full throttle.

Components

Each component is engineered for a purpose and to a very high standard. Each Z4M System consists of:

- 100% Prepreg Carbon Fibre Intake Housing
- Aluminium inlet cowling
- High Flow Filter
- CNC Machined MAF tube
- Laser Cut and Powder Coated Aluminium Scoop
- Aluminum heat shield with neoprene lining
- High quality Silicon coupler with BMW spec hose clamps

Made from 100% prepreg carbon fibre of the highest quality, the workmanship on the housing is second to none. This is mated to an anodised aluminum inlet cowl to ensure a smooth inlet flow path. Finally the assembly is then mated to an aluminium heat shield which is insulated with neoprene and effectively shrouds the intake from engine bay heat and encapsulates the ambient air being diverted from the scoop. Finally we have also incorporated a clip to secure the coolant hose.

The MAF tube is CNC machined from aluminum and then anodised. The MAF boss itself is machined from an engineering plastic to minimise the heat soak into the sensor through conduction. We have incorporated a machined recess on one side to allow the OEM rubber gasket from the stock airbox to be used for a perfect seal into the stock elbow.

Laser Cut from Aluminium and then powder coated - the Z4M air scoop directs ambient air directly into the filter opening and effectively keeps IAT's down. Unlike other aftermarket scoops - there is no drilling required to install. This scoop simply clicks into place using the factory hole locations and the supplied push rivets.

Dyno Results
Shown here is a dyno graph showing the comparison between the Eventuri and the stock airbox on a completely standard car with standard map. As you can see, power and torque are increased throughout the rev range and the power curve is even smoother than factory. This translates on the road to increased part throttle and full throttle response with the car pulling much more eagerly to the redline.

WE WILL BEAT ANY OTHER GENUINE QUOTE

Estimated Volumetric Shipping Weight : 6.00 Kg

Product Code: evenz4mpnlfilt

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- Direct replacement for your original equipment panel filter
- Air scoop to direct cold air into the airbox to lower IAT
- Polyurethane filter which won't deform from heat
- Dry filter to protect MAF from being covered in oil

Estimated Volumetric Shipping Weight : 2.00 Kg