Maximize performance and reduce intake air temperatures on your E90 335d with the Turner Motorsport Stepped Intercooler. Designed as a direct-fit upgrade for the factory intercooler, this high-efficiency unit increases charge air volume and airflow, helping your diesel-powered BMW run cooler, stronger, and more efficiently.

Cooler air is denser air, and denser air means more power. By reducing intake air temperatures (IATs), this upgraded intercooler allows your M57 engine to pack in more air and fuel per cycle, translating to improved performance across the RPM range.

Engineered for performance and durability, the Turner stepped intercooler features cast aluminum end tanks and a bar-and-plate core design, offering superior thermal efficiency and structural strength. Compared to the stock unit, it delivers a 65% increase in both frontal surface area and internal cross-sectional flow, ensuring better heat dissipation and reduced pressure drop. All of this performance comes in a lightweight package under 20 lbs.

Finished in a stealthy black coating with laser-etched Turner logos, this intercooler not only performs but looks good doing it.

Key Features:

Designed specifically for the E90 335d (M57 engine)
Cast aluminum construction for durability
High-efficiency bar-and-plate core
65% increase in frontal and cross-sectional area
Significantly lowers IATs for improved power and reliability
Reduced pressure drop for more consistent boost delivery
Lightweight design – under 20 lbs
Dimensions: 520mm wide × 200mm tall × 150mm deep
Direct bolt-on installation – no modifications required
If you're looking to get the most out of your E90 335d, the Turner Motorsport Stepped Intercooler is a must-have upgrade for your turbo diesel intake system.

BMWs turbocharged S55 engine uses a water-to-air charge air cooling system, with a front-mounted heat exchanger responsible for heat dissipation. Unfortunately, the factory single-row, 27mm core design is quick to heat soak under high load, leading to excessive intake air temperatures and potential limp mode conditions especially on modified or track-driven cars.

To solve this issue, we've developed a drop-in upgrade over the factory unit. Engineered for durability and maximum cooling efficiency, this heat exchanger is a must-have for high-horsepower street builds, spirited canyon driving, and extended track sessions. Built from TIG-welded 5052 aluminum, our design eliminates the factory plastic end tanks one of the systems most common failure points. Each heat exchanger features CNC-machined billet aluminum hose connections, mounting flanges, and brackets for perfect OE fitment and trouble-free installation.

By replacing the OEM 27mm single-row core with a robust 35mm dual-row design, this heat exchanger dramatically increases both cooling capacity and surface area. Frontal area jumps from 307mm to 475mm, resulting in a 100% increase in coolant volume and significantly improved heat-soak resistance. The outcome? Lower, more stable charge air temperatures that help your S55 deliver consistent, reliable power on the street or at the track.

Replaces OEM part numbers 17112284608 and 17112459062.

Features:

5052 aluminum construction eliminates plastic end tank failures A performance-oriented, dual-row core provides a 55% increase in frontal surface area, and a 100.29% increase in coolant volume over the OE heat exchanger! OE Heat Exchanger: Single-row core 27mm core thickness 307mm core height ECS High Performance Aluminum Heat Exchanger: Dual-row core 35mm core thickness 475mm core height TIG-welded 5052 aluminum end tanks, polished to a mirror finish for a high-quality look CNC-machined connectors and bracketry ensure seamless fitment with factory cooling hoses, transmission cooler lines, condenser, and radiator Drop-in upgrade - no modifications required for installation! Product Development:

Our High Performance Aluminum Heat Exchanger was designed, engineered, tested, and quality inspected by our Research and Development team in our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

BMW’s turbocharged B48 and B58 engines use a water-to-air charge air cooling system, with a front-mounted heat exchanger responsible for heat dissipation. Unfortunately, the factory single-row, 25mm core design is quick to heat soak under high load, leading to excessive intake air temperatures and potential limp mode conditions—especially on modified or track-driven cars.

ECS Tuning’s High Performance Aluminum Heat Exchanger was developed in-house as a direct replacement and upgrade over the factory unit. Designed for durability and maximum cooling efficiency, this heat exchanger is a must-have for high-horsepower street builds, spirited canyon driving, and extended track sessions. Built from TIG-welded 6061-T6 aluminum, the ECS unit eliminates the factory plastic end tanks—one of the system’s most common failure points. Each heat exchanger features CNC-machined billet aluminum hose connections, mounting flanges, and brackets for perfect OE fitment and trouble-free installation.

To drastically improve thermal efficiency, the factory 25mm single-row core has been replaced with a dual-row, 42mm performance core, offering a 72% increase in thickness. This expanded design nearly doubles coolant volume, allowing for greater heat dissipation, reduced intake air temperatures, and more consistent power delivery.

Replaces OEM Part Numbers: 17118666811, 17115A54040

Features:

6061 aluminum construction eliminates plastic end tank failure Dual-row, 42mm performance core provides 72% greater core thickness for improved cooling efficiency OE core: single-row, 25mm | ECS core: dual-row, 42mm TIG-welded 6061-T6 aluminum end tanks for exceptional strength Polished end tanks deliver a clean, high-quality finish CNC-machined billet connectors and brackets ensure seamless OE-style fitment Direct bolt-on upgrade – no modifications required

Maximize cooling efficiency and take your BMW’s performance to the next level with the ECS High Performance Cooling System Bundle—a complete, track-proven upgrade engineered to handle the extreme thermal demands of the G2X B58 platform. Developed by the enthusiasts at ECS Tuning, this system includes both the High Performance Aluminum Radiator and High Performance Aluminum Heat Exchanger, designed to deliver consistent, reliable temperature control in even the most demanding driving conditions.

The factory BMW cooling components just aren’t built for high-performance or track use. Both the OE radiator and heat exchanger feature weak plastic end tanks and undersized single-row cores—common failure points when exposed to elevated heat and pressure. ECS set out to solve these shortcomings with an all-aluminum, dual-row system designed for enthusiasts who demand more from their BMW. ECS engineers started by replacing the fragile plastic end tanks with TIG-welded 6061-T6 aluminum for unmatched durability. Each tank is precision-crafted with CNC-machined billet aluminum hose connections, flanges, and brackets, ensuring direct OE-style fitment with the factory hoses, fan shroud, and accessories—no cutting or modifications required.

Both the radiator and heat exchanger feature high-capacity, dual-row 42mm cores, a massive improvement over the factory’s 34mm and 25mm single-row designs. The result? Faster heat dissipation, lower intake air temperatures, and more consistent performance, whether you’re cruising or carving apexes.

Radiator: Replaces OEM part numbers 17118666740 and 17115A30677

Heat Exchanger: Replaces OEM part numbers 17118666811 and 17115A54040

Features:

6061-T6 aluminum construction eliminates weak plastic end tanks Dual-row core design for increased cooling capacity and efficiency Radiator: 42mm dual-row core (45% thicker than OE 34mm core) Heat Exchanger: 42mm dual-row core (72% thicker than OE 25mm core) TIG-welded end tanks for superior strength and reliability Polished aluminum finish for a premium, high-performance look CNC-machined connectors and brackets for perfect OE fitment Fully compatible with factory hoses, fan shroud, condenser, and intercooler Direct bolt-in installation—no modifications required

Forge's silicone intercooler hose features a Fluorosilicone inner liner, proven to last with the use of coolants, Organic Acid Technology coolants, or air containing oil blowby.

This Forge product comes with a limited Lifetime warranty.

This product fits the following BMWs:
2014+ F22 M235i M235iX
2014+ F23 M235i 

When modifying the car and increasing boost, installing an upgraded intercooler is essential to keep the engine computer from restraining boost as temperatures climb. The stock air-air intercooler is quickly overcome with heat and can't keep the intake air cool enough. If it's too hot the engine computer will reduce power to safer levels. This Dinan intercooler is a dual-core air-air design with an astounding 240% more surface area than the factory intercooler. The temperature at boost is 60% cooler at 6,250 RPM with the Dinan Dual Core compared to stock. Even heat soak at low speeds is reduced, making this a worthwhile addition even for stock or mildly tuned engines. Professional installation is strongly recommended as bumper removal is required and several pieces in the front end need to be cut and trimmed. The factory charge piping in and out of the intercooler is re-used.

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. The intercooler is worth 2 points towards your Dinan badge.

Click here for full installation instructions, including fitment details. We strongly recommend reviewing these instructions prior to purchasing so you will be familiar with the small differences among models and front bumper designs.

This item fits the following BMWs:
2014+ F22 F23 BMW 228i 228iX M235i M235iX
2012-2015 F30 BMW 320i 328i 328i X-Drive 335i 335i X-Drive - Sedan
2012-2015 F31 BMW 328i X-Drive - Touring Wagon
2012-2016 F32 BMW 428i 428i X-Drive 435i 435i X-Drive - Coupe
2012-2015 F34 BMW 328i 328i X-Drive 335i 335i X-Drive - Gran Turismo
2012-2016 F36 BMW 428i 428i X-Drive 435i 435i X-Drive - GranCoupe

Complete Silicone Intake System Kit

This kit includes the intake boot, hot side boot, and cold side elbow kit to fully upgrade your intake system with matching silicone parts for your engine bay.

Introducing M7 Speed’s newly developed 100% silicone, four-ply fiber-reinforced intake hose for MINIs equipped with the N14 turbocharged engine. Available in the four standard M7 colors (BLACK, RED, BLUE, and GREEN), this direct OE replacement part offers superior durability, improved airflow, and virtually unlimited service life. It not only boosts performance but also adds a striking under-hood WOW factor that MINIs crave.

Unlike other hoses on the market, the M7 hose retains the OE PCV (positive crankcase ventilation) connection location and size, allowing for seamless installation without modifications. This means no disruption to the PCV electrical connection, preventing any risk of triggering a Check Engine Light (DTC code). The kit includes three stainless steel clamps and easy-to-follow installation instructions. Please note that this part fits only MINIs equipped with the N14 turbocharged engine, which has one large PCV vent hose connected from the intake hose to the cam cover.

Features:

• Made from 100% silicone, resistant to oil and most chemicals
• Designed for continuous service at high temperatures (300°F [149°C])
• Four-ply fiber-reinforced construction for maximum strength and durability
• Retains stock PCV connection location and size for easy installation
• No modifications or cutting required for installation
• 33% larger inside flow volume compared to the stock part
• Super smooth inner flow surface and transitions promoting better airflow to the turbocharger
• Available in four standard M7 colors
• 2.75” [70mm] ID at the MAF sensor and 1.97” [50mm] ID at the turbo inlet
• Easy DIY installation

This intercooler improves performance by increasing thermal efficiency, keeping your car cool in a wider variety of conditions, as well as prolonging turbocharger life and decreasing cool-down time after hard running. Even on a stock car, this intercooler can add additional horsepower due to its increased volume and efficiency.

• Max gains of 7 HP and 5 lb-ft of torque on a stock car.
• Face area  278% larger than the stock intercooler setup for maximum cooling efficiency to deter heat soak.
• Charge Air Pressure drop: 0.80 PSI (69% improvement over stock)
• Charge Air Temperature drop: 193º F (9% improvement over stock)
• Charge Air Temperature / Ambient Temperature Delta: 25º F @ 6250 RPM (39% improvement over stock)

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere.

This ECS intercooler replaces the stock MINIature intercooler with a MASSIVE 250% larger surface area and a 125% thicker base core! This increase in core size improves flow while cooling compressed air into the intake manifold. Cast aluminum end tanks are TIG welded and feature machined transitions for maximum flow. This intercooler features a special black powder coating to prevent fin corrosion, as well as improve overall heat transfer to insure the lowest possible outlet temperatures.

FEATURES:

250% larger surface area compared to the OEM intercooler 125% thicker intercooler core TIG welded transitions Flat black powder-coated finish BENEFITS:

Drastically lower intercooler outlet temperatures/intake air temperatures Increased airflow Reduces the likelihood of heat soak DESIGN:

The limitations of the stock intercooler were apparent throughout our testing and design process. The stock part consistently struggled to manage charge air temperatures, even under normal driving conditions. Our ECS Intercooler has been designed to improve on every restrictive element of the stock cooler, enhancing cooling efficiency by lowering intake air temperatures even compared to the R56 Cooper S aluminum intercooler, allowing you to continuously push your car without the detriment of heat soak!

This ECS Front Mount Intercooler Kit was designed, engineered, tested, and quality inspected by our Research and Development team at our Wadsworth, Ohio facility. We strive for the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

NOTE: A performance tune is not required to run this intercooler. A tune will only increase the output of the engine when equipped with this intercooler.

**Some Prefacelift & GP2 models require slight modification inside the front bumper**

MINI F Chassis Uprated Intercooler For MINI F55+ 1.5 Turbo

MINI F Chassis Uprated Intercooler For MINI F55+ 1.5 Turbo is a performance-enhancing upgrade designed for Mini enthusiasts seeking improved cooling efficiency. Specifically engineered for MINI F Chassis models with the 1.5 Turbo engine, this uprated intercooler helps reduce intake air temperature, resulting in increased power and torque. With its high-quality construction and precision design, it ensures optimal performance and durability, allowing Mini owners to enjoy a more exhilarating driving experience.

• Specifically engineered for MINI F Chassis models with the 1.5 Turbo engine
• Reduces intake air temperature for increased power and torque
• Enhances cooling efficiency for improved performance
• High-quality construction ensures durability and reliability
• Precision design ensures optimal fit and function

Upgrade your Mini's performance with the MINI F Chassis Uprated Intercooler For MINI F55+ 1.5 Turbo and experience a more thrilling ride.

Complete Silicone Intake System Kit

This kit includes the intake boot, hot side boot, and cold side elbow kit, offering a complete silicone solution for your intake system. Get a matching set for your engine bay that not only enhances performance but also looks fantastic.

M7 Speed is proud to release its 100% silicone, four-ply fiber-reinforced intake hose for all MINIs equipped with the N14 turbocharged engine. Available in four standard M7 colors (BLACK, RED, BLUE, and GREEN), this direct OE replacement part offers superior durability, enhanced airflow, and virtually unlimited service life. It not only boosts performance but also adds a stunning under-hood WOW factor that MINIs desperately need.

Unlike other hoses on the market, the M7 hose retains the OE PCV (positive crankcase ventilation) connection location and size, allowing the OE hose and connector to be installed without modifications. This ensures no disruption to the PCV electrical connection, eliminating the risk of triggering a Check Engine Light (DTC code). The kit comes with three stainless steel clamps and easy-to-follow installation instructions. Note that this part fits only MINIs equipped with the N14 turbocharged engine with one large PCV vent hose connected from the intake hose to the cam cover.

Features:

• Made from 100% silicone, resistant to oil and most chemicals.
• Designed for continuous service at high temperatures (300°F [149°C]).
• Four-ply fiber-reinforced construction for maximum strength and durability.
• Retains stock PCV connection location and size for easy installation.
• No modifications or cutting required for installation.
• 33% larger inside flow volume compared to the stock part.
• Super smooth inner flow surface and transitions promoting better airflow to the turbocharger.
• Available in four standard M7 colors.
• 2.75” [70mm] ID at the MAF sensor and 1.97” [50mm] ID at the turbo inlet.
• Easy DIY installation.

Forge's larger intercooler installs with no cutting or even removal of bumpers.

After a quick and simple install, you can expect temperature drops of 25 degrees Celsius. Lower temperatures leave room for more power and less heat soak thanks to a larger cooler charge. This intercooler features a bar and plate design core, featuring overall larger dimensions that improves cooling ability in comparison to the stock intercooler.

This product fits the following BMWs:
2014+ F22 M235i M235iX
2012+ F30 335i 335iX 
 

When modifying the car and increasing boost, installing an upgraded intercooler is essential to keep the engine computer from restraining boost as temperatures climb. The stock air-air intercooler is quickly overcome with heat and can't keep the intake air cool enough. If it's too hot the engine computer will reduce power to safer levels. A Dinan intercooler is much larger than stock, providing more surface area for cooling air to pass through. Even heat soak at low speeds is reduced, making this a worthwhile addition even for stock or mildly tuned engines. The E92/E93 335i Dinan intercooler is 93% larger than stock but is a direct replacement with only minor trimming of plastic undertrays required for installation. The factory charge piping in and out of the intercooler is re-used.

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. The intercooler is worth 2 points towards your Dinan badge.

This item fits the following BMWs:
2007-2010 E92 BMW 335i 335xi - Coupe
2007-2010 E93 BMW 335i - Convertible