Our Performance CSL Air Filters start with a multi-layer oiled cotton construction that contains millions of smaller fibers to provide superior filtration and performance over the OEM filter. Precisely manufactured for a secure fitment to ensure all the air entering your motor is properly filtered. With the CSL E46 only being offered in Europe, the OEM air filters are produced in much lower quantities making them harder to obtain and drive up the price. Turners solution is a price effective solution that offers premium filtration with increased flow, extended service interval and lifespan.

Having a clean air filter ensures your engine is running at its best efficiency! Proper air flow will help your engine breathe, get the best fuel economy and allow full power throughout the power band. Get the most out of your CSL intake with a new Oiled High Flow Air Filter. These filters can be cleaned, oiled and reused for an extended service life.

Oiled versus Dry Filters:

Although both options will keep the air to your engine clean and improve airflow, there are a few differences to consider when choosing the best filter for you. Oiled filters allow better airflow than dry filters, however they require more maintenance. Oiled filters will likely get dirty faster, needing to be cleaned more regularly. When cleaning an oiled filter, it is necessary to oil them with filter oil afterwards.
Dry filters offer slightly lower airflow but are easier to maintain while still out performing the OE paper filter. Dry filters can be washed with warm soapy water. There is no oiling necessary afterwards.
Both dry and oiled filters flow better than stock and can be reused.
Product Features:

Direct Replacement for OEM filter
Increased air flow
Lower cost
Serviceable
Readily available
How to service an oiled air filter:

Take out your High Flow Filter
Gently tap your air filter on a smooth surface
Wash with warm soapy water a a soft bristled brush
Rinse with low pressure water
Let the filter air dry
Apply new filter oil
Ready to reinstall for a fresh drive!

The F-connector is located on the air intake boot and provides a connection point for the vacuum lines that run to the brake booster and fuel pressure regulator. The factory connector is made of plastic and with heat and exposure to the elements the connector becomes brittle and potentially cracks. As a result, a vacuum leak occurs which can cause poor idling issues, evap fault codes, and poor performance. 

This aluminum version from ECS Tuning is impervious to these issues, and will easy outlast the rest of your plastic and rubber vacuum system components. 

This item fits the following BMWs: 
E39 525i 530i 

E46 325i 325xi 330i 330xi

Z3 2.5i 3.0i
 

Our Performance CSL Air Filters start with a multi-layer synthetic dry cotton construction that contains millions of smaller fibers to provide superior filtration and performance over the OEM filter. Precisely manufactured for a secure fitment to ensure all the air entering your motor is properly filtered. With the CSL E46 only being offered in Europe, the OEM air filters are produced in much lower quantities making them harder to obtain and drive up the price. Turners solution is a price effective solution that offers premium filtration with increased flow, extended service interval and lifespan.

Having a clean air filter ensures your engine is running at its best efficiency! Proper air flow will help your engine breathe, get the best fuel economy and allow full power throughout the power band. Get the most out of your CSL intake with a new Synthetic High Flow Air Filter. These filters can be cleaned and reused for an extended service life.

Oiled versus Dry Filters:

Although both options will keep the air to your engine clean and improve airflow, there are a few differences to consider when choosing the best filter for you. Oiled filters allow better airflow than dry filters, however they require more maintenance. Oiled filters will likely get dirty faster, needing to be cleaned more regularly. When cleaning an oiled filter, it is necessary to oil them with filter oil afterwards.
Dry filters offer slightly lower airflow but are easier to maintain while still out performing the OE paper filter. Dry filters can be washed with warm soapy water. There is no oiling necessary afterwards.
Both dry and oiled filters flow better than stock and can be reused.
Product Features:

Direct Replacement for OEM filter
Increased air flow
Lower cost
Serviceable
Readily available
How to service an oiled air filter:

Take out your High Flow Filter
Gently tap your air filter on a smooth surface
Wash with warm soapy water a a soft bristled brush
Rinse with low pressure water
Let the filter air dry
Ready to reinstall for a fresh drive!

Enhance your BMW's performance with the Turner Motorsport Exact-Fit High Flow Dry Air Filter, replacing the factory air filter for optimal airflow. This reusable filter offers a higher flow than stock paper filters, instantly improving engine power and fuel economy across the power band. As a direct replacement for the OEM filter, it's a hassle-free performance modification that shows immediate results. Choose between oiled and dry filters based on your preference and maintenance preferences, with both options outperforming OE paper filters. The dry filter, in particular, requires minimal maintenance, making it a cost-effective and efficient choice.

• Enhances engine performance and fuel economy
• Higher flow than OEM paper filters
• Reusable and washable for long-term use
• Direct replacement for the OEM filter
• Choose between oiled and dry filters based on maintenance preference
• Dry filter requires minimal maintenance and no oiling
• Cleaning needed only every 50,000 miles under normal highway driving conditions
• Cost-effective alternative to regularly replacing paper filters

Be sure to check out the full line of filter cleaning supplies Turner Motorsport has to offer!

BMW S54 Silicone Throttle Body Boot Set - With Clamps is an essential upgrade for any BMW S54 engine, designed to replace aging and deteriorating rubber intake boots. Engineered by Turner Motorsport, these silicone throttle body boots provide superior durability and reliability under both street and race conditions, including boosted applications. Unlike simple silicone reducers, these boots are meticulously designed with the same internal features as the originals, ensuring a perfect factory fitment. The three-ply construction offers enhanced strength and longevity, making them slightly thicker than the factory boots. This set includes six boots and compatible clamps, providing a complete solution at a fraction of the cost of OEM replacements.

• Enhanced Durability: Three-ply construction withstands heat cycling, vibrations, and oil exposure.
• Perfect Fit: Designed with factory fitment in mind, including all internal features of the originals.
• Complete Set: Includes six boots and compatible clamps for a full replacement.
• Cost-Effective: Less than half the price of OEM replacement boots.
• Versatile Compatibility: Fits all intake plenums, including US, CSL, and replicas using OE-style boots.

Upgrade your BMW's air filtration system with the Turner Motorsport Exact-Fit High Flow Dry Air Filter. This direct replacement for your factory air filter offers superior airflow, allowing your engine to breathe better and enhancing both power and fuel economy. Enjoy immediate performance gains with this reusable filter, which outperforms stock paper filters and requires minimal maintenance.

Key Benefits:

• Improves engine breathing for better performance
• Enhances power throughout the power band
• Increases fuel economy
• Reusable filter for long-term savings
• Easy installation as a direct OEM replacement

Oiled versus Dry Filters:

Although both options will keep the air to your engine clean and improve airflow, there are a few differences to consider when choosing the best filter for you. Oiled filters do allow slightly better airflow than dry filters, however they require more maintenance. Oiled filters will likely get dirty faster, needing to be cleaned more regularly. When cleaning an oiled filter, it is necessary to oil them with filter oil afterwards. This filter will save you money by no longer needing to replace a paper filter.

Dry filters offer slightly lower airflow but are easier to maintain while still outperforming the OE paper filter. Dry filters can be washed with warm soapy water. There is no oiling necessary afterwards.

Both dry and oiled filters flow better than stock and can be reused.

Introducing the Turner Motorsport Bavarian Autosport Idle Control Valve for BMW M50, M52, and M54 engines. This crucial component, situated in the intake system, addresses common idle issues experienced by BMW owners. Enhance your BMW's performance and ensure smooth idling with this Idle Control Valve.

• Turner Motorsport's Bavarian Autosport Idle Control Valve for M50, M52, M54 engines.
• Targets and resolves common idle issues.
• Promotes smooth and consistent idling.
• Essential for maintaining optimal engine performance.
• Reliable component for BMW enthusiasts.

Upgrade your BMW's idle control system with the Turner Motorsport Bavarian Autosport Idle Control Valve, ensuring a seamless driving experience.

This precision-engineered throttle body adapter plate was originally developed for the Turner Motorsport SPEED World Challenge racing team. It enables the use of a mechanical throttle body in place of the M54 engine's factory drive-by-wire system, offering greater control and reliability for high-performance or competition use. Ideal for custom builds and race applications, this adapter plate ensures a seamless installation while retaining the structural integrity and alignment needed for optimal throttle performance.

Important Notes:

Designed specifically for professional racing applications. Requires the use of custom software for proper integration and functionality. Recommended for experienced tuners and mechanics familiar with custom engine configurations.

Silicone Coupler - Straight 3" ID (76.20mm) x 3" L

No matter the project, ECS Tuning silicone couplers and elbows offer a high-quality, precision-engineered solution to your needs. Whether you're installing an intercooler, fabricating a custom intake system, or whatever else you can dream up, ECS Tuning has you covered.

• High-quality silicone construction for durability
• Precision-engineered design ensures a perfect fit
• Versatile solution for various automotive projects
• Enhances performance and reliability
• Compatible with BMW and other vehicles

For optimal performance, consider the 46.5mm To 61.0mm Silicone Coupler.

Engineered with durability and functionality in mind, this silicone coupler provides a reliable connection for various components in your vehicle's intake or cooling system. Its smooth interior surface promotes efficient airflow, while its flexible and reinforced construction ensures a secure fit and prevents leaks. Enjoy hassle-free installation and enhanced performance with this premium silicone coupler.

• Durable silicone construction
• Smooth interior surface for efficient airflow
• Flexible and reinforced design prevents leaks
• Secure fit for reliable performance
• Hassle-free installation

Upgrade your BMW or MINI with the BMW & MINI Silicone Coupler - Straight 2.38" (60.33mm). This high-quality silicone coupler is designed to provide a secure and leak-free connection for your vehicle's intake or cooling system. Engineered for durability and flexibility, it ensures optimal performance under various conditions. With its straight design and precise dimensions, this silicone coupler offers easy installation and a perfect fit for your BMW or MINI.

• Provides a secure and leak-free connection
• Engineered for durability and flexibility
• Straight design for easy installation
• Perfect fit for BMW and MINI vehicles

ECS Silicone Coupler

Upgrade your BMW with the ECS Silicone Coupler. This straight 3 5/8" ID (92mm) x 3" L coupler is designed to enhance your vehicle's performance and durability. Crafted from high-quality silicone, it ensures long-lasting reliability and superior performance.

• Enhances vehicle performance
• Durable construction for long-lasting reliability
• Specifically designed for BMW vehicles

ECS High-Flow Intake for E46 – Unleash Performance and Induction Sound

Transform your E46 driving experience with the ECS High-Flow Intake, engineered for improved airflow, exhilarating induction noise, and a noticeable performance boost. Designed as a direct replacement for your restrictive factory intake, this system lets your engine breathe freely while delivering the aggressive intake sound every enthusiast craves.

Why Upgrade?
The factory intake system prioritizes refinement over performance, limiting airflow and muffling the intake noise for a subdued driving experience. The ECS intake changes the game by significantly increasing air intake efficiency and enhancing the auditory excitement under your hood. It’s a must-have for those seeking the perfect balance of power and sound.

Featured in Action:
Catch this intake in action on the ECS YouTube channel's "Chasing Down Track Times at Pitt Race!" episode, see and hear the difference for yourself.

Key Benefits:

Increased Airflow: Boosts intake efficiency by approximately 27%, flowing an average of 71 CFM more than the stock system.
Enhanced Induction Noise: Enjoy the raw, satisfying sound of air rushing into your engine.
Factory Compatibility: Maintains the stock air induction track and MAF location, allowing a seamless switch back to the factory airbox if needed.
Premium Design Features:

Constructed from durable, lightweight 6061 and 5052 aluminum with a wrinkle-black powder coat finish.
Includes a 7” oiled cotton gauze ECS filter for optimal filtration and airflow.
Silicone intake boot with improved flow replaces the failure-prone factory accordion boot, featuring provisions for F-connector and Idle Air Control (IAC) valve.
Stainless steel M6 hardware and aluminum brackets ensure a secure and reliable installation.
Complete Kit Contents:

Silicone inlet
Aluminum MAF flange
Mounting bracket
7” ECS filter (black)
Seals, clamps, and hardware for easy installation
Upgrade your E46 with the ECS High-Flow Intake for a driving experience filled with power, sound, and excitement. Breathe new life into your engine – order now!

Free-flowing intake featuring a roaring induction noise and increased performance to replace your restrictive factory intake.

Upgrade your E46 driving experience by adding induction noise and increased air flow. Let your engine breath and listen to the sweet sweet intake sounds!

With the factory intake you are limited to a finite amount of air, this leaves your engine under-served and limits induction noise. When it comes to the recipe for upgrading your E46 there are a few ingredients that you must have, power and sound. While you can add an exhaust for a bit more power and sound, the biggest difference you can make is adding power and sound under your hood with a high-flow intake. The factory intake box is also referred to as a silencer specifically designed to lower the induction noise for a refined driving experience, this helped exponentially when selling the cars out of the show room circa early 2000's. We as enthusiasts are no longer interested in subdued intake noise and limited air-flow, we want pure induction noise, we want to hear the air being sucked into the engine as we push down on the accelerator.

Key benefits:

Flows on average 71 CFM more than the stock intake system, a ~27% increase in intake efficiency
Increased induction noise
Maintains factory air induction track
Maintains Stock MAF location, allowing user to switch back to the stock airbox and retain the ECS Silicone boot if desired
Design:

Durable, lightweight 6061 and 5052 aluminum intake tube and bracket design, finished in wrinkle black powder coat
Mounts to locations on chassis utilizing Stainless Steel M6 hardware
MAF mounts to intake using aluminum brackets sealed to intake system with OEM fitment
Maximizes available engine bay space to fit oiled ECS cotton gauze 7” filter
Silicone intake boot with improved flow characteristics replaces failure-prone facotry accordion intake boot with provisions for F-connector fitting and Idle Air Control (IAC) valve inlet

Free-flowing intake featuring a roaring induction noise and increased performance to replace your restrictive factory intake.

Upgrade your E46 driving experience by adding induction noise and increased air flow. Let your engine breath and listen to the sweet sweet intake sounds!

With the factory intake you are limited to a finite amount of air, this leaves your engine under-served and limits induction noise. When it comes to the recipe for upgrading your E46 there are a few ingredients that you must have, power and sound. While you can add an exhaust for a bit more power and sound, the biggest difference you can make is adding power and sound under your hood with a high-flow intake. The factory intake box is also referred to as a silencer specifically designed to lower the induction noise for a refined driving experience, this helped exponentially when selling the cars out of the show room circa early 2000's. We as enthusiasts are no longer interested in subdued intake noise and limited air-flow, we want pure induction noise, we want to hear the air being sucked into the engine as we push down on the accelerator.

Key benefits:

Flows on average 71 CFM more than the stock intake system, a ~27% increase in intake efficiency
Increased induction noise
Maintains factory air induction track
Maintains Stock MAF location, allowing user to switch back to the stock airbox and retain the ECS Silicone boot if desired
Design:

Durable, lightweight 6061 and 5052 aluminum intake tube and bracket design, finished in wrinkle black powder coat
Mounts to locations on chassis utilizing Stainless Steel M6 hardware
MAF mounts to intake using aluminum brackets sealed to intake system with OEM fitment
Maximizes available engine bay space to fit oiled ECS cotton gauze 7” filter
Silicone intake boot with improved flow characteristics replaces failure-prone facotry accordion intake boot with provisions for F-connector fitting and Idle Air Control (IAC) valve inlet