Stainless steel filtration is not a new technology but is quickly gaining popularity in the automotive segment. With the ability to filter down as small as a paper filter element with the ability to be washed and reused!

The K&P Engineering filter element is made from medical grade, type 304 stainless steel micronic filter cloth to provide unmatched protection against oil contamination and resultant engine damage. A one inch square of this material flows an incredible 1.9 gallons of oil per minute at only 1 PSI pump pressure. The adhesive used in the filter assembly process is good to 600 degrees Fahrenheit, far above normal engine operating temperatures. A super strength nickel-plated neodymium rare earth magnet is installed in the top of the element for magnetic pre-filtering of the oil. The sophisticated bypass is engineered for proper differential pressures and consistent operation, delivering a greater percentage of filtered oil while being very easy to clean. The twist lock design assures positive filter element placement and allows for easy disassembly, inspection, and cleaning. The quad-ring gasket doubles the seal between the filter and the engine. Finally, the filter housing is carved out of solid 6061T6 billet aluminum, which not only looks trick but aids in dissipating heat.

K&P Engineering manufactures stainless steel filters for a vast array of engines around the world. Staying at the forefront of design and testing allows this company to offer a top-tier product for your European vehicle.

Features:

• Consistent filtering across entire filter surface
• Superior ASTMF316 filtration performance
• Magnetic Prefiltering
• Progressive rate bypass combined with high flow characteristics of the filter media avoids unfiltered oil bypassing the filter during cold startup and high rpm
• Easy inspection of engine contamination
• Proven in Motorsports, Military and Aerospace applications for years. Technology is FAA approved for use in aircraft. 

At regular oil changes, clean to K&P's specifications for continued used - a true lifetime filter.

This part fits the following BMWs:
1991 - 1999 E36 Coupe 323i 325is 328i
1993 - 1999 E36 Convertible 323i 325i 328i
1990 - 1999 E36 Sedan 325i 328i 
1989 - 1995 E34 525i, 530i, 
1998 - 2004 E39 Touring 525i 528i 
1996 - 2004 E39 Sedan 525i 528i 530i 
1999 - 2001 E46 Convertible 323ci 325ci 330ci
2002-2006 E46 Convertible 325ci 330ci
1998 - 2001 E46 323ci 325ci 330ci M3
2002 - 2006 E46 325ci 330ci
1998 - 2001 E46 Touring 323i 325i
2002 - 2006 E46 Touring 325i 325xi
1998 - 2001 E46 Sedan 323i 325i 328i 330i
2002 - 2006 E46 Sedan 325i 325xi 330i 330xi
2000 - 2006 E53 X5 SUV X5 X5 3.0i 

Take your BMW’s cooling system to the next level with this Turner Motorsport Cooling Upgrade Kit. Featuring a Heavy-Duty Aluminum Expansion Tank and a Mechanical Thermostat Conversion Kit, this combo is engineered to deliver ultimate reliability and superior performance for M52TU/M54 engines. Say goodbye to the cooling system failures common in stock setups—Turner Motorsport has you covered.

Turner Motorsport M52TU/M54 Heavy-Duty Expansion Tank Kit

The Turner Motorsport Aluminum Expansion Tank is a premium upgrade designed to replace the fragile factory plastic tank, which is known to crack, leak, or even explode. Crafted for durability, this tank’s all-aluminum construction with wrinkle black powder coating ensures this is the last expansion tank you’ll ever need.

Why Upgrade? The factory plastic tanks on BMW M52TU/M54 engines are notorious for failure under heat and pressure. Avoid the risk of being stranded on the side of the road with a mess of coolant—Turner Motorsport’s aluminum expansion tank is built to withstand years of demanding use and intense heat cycles.

Key Features and Benefits:

Complete Kit: Includes Turner Aluminum Expansion Tank, coolant level sensor, expansion tank cap, and flared coolant pressure release line. OEM Fit & Capacity: Direct fit with no modifications, maintains stock coolant capacity and expansion volume. Baffled Design: Prevents air pockets during aggressive driving and ensures accurate coolant level readings. Premium Construction: TIG-welded 5052 aluminum with machined fittings for factory hose compatibility. Turner Motorsport M52TU/M54 Mechanical Thermostat Conversion Kit

Replace your problematic factory plastic thermostat housing with Turner Motorsport’s high-quality billet aluminum Thermostat Conversion Kit. This upgrade not only provides increased reliability but also allows for thermostat swaps to suit specific temperature requirements, making it ideal for daily drivers and track cars alike.

Why Make the Switch? The factory plastic thermostat housing with its built-in thermostat is prone to cracking and requires the whole unit to be replaced during maintenance. Turner’s conversion kit changes the game by providing a durable billet housing with a replaceable thermostat for flexibility and lower maintenance costs.

Key Features and Benefits:

Increased Reliability: Uses an M50/S50 mechanical thermostat, including an 80°C thermostat for enhanced cooling control. Customizable: Includes barbed hose connections for standard E46 M3 hoses and -16 ORB connections for custom hoses. Engineered to Last: CNC-machined from billet 6061 aluminum and black anodized for corrosion resistance. Enhanced Sealing: Features a Viton gasket for superior durability and sealing performance. Kit Includes:

6061 Billet Aluminum Thermostat Housing 80°C Mechanical Thermostat Thermostat Housing Gasket Thermostat Harness ECS Silicone E46 M3 Cooling Hoses Turner Motorsport Precision Engineering & Product Development

Every component in this cooling upgrade kit has been rigorously designed, engineered, and tested by Turner Motorsport’s Research and Development team. Using state-of-the-art technology such as FARO laser scanning, SolidWorks 3D modeling, and in-house rapid prototyping, Turner ensures that these products meet the highest standards of quality, precision, and durability.

Upgrade your BMW with confidence—Turner Motorsport is your partner in performance and reliability.

Automatic transmissions are reliable, shift smoothly, and can last without issue so long as they are properly maintained. Over time, the transmission fluid becomes thick and the filter becomes contaminated with small metal particles. This can cause excess wear, high transmission operating temperatures, and eventual failure. To prevent this we recommend changing your filter, fluid, and seals to ensure your transmission continues to operate flawlessly. We recommend filter and fluid changes every 50,000 miles. This filter fits A5S325Z automatic transmissions on BMW E46 323i 323ci 325i 325ci 328i 328ci 330i 330ci . E39 525i 528i 530i. E85 Z4 2.5i Z4 3.0i. This kit includes the transmission filter and gasket.

Kit Contents:

• 1 x 24341423376 - transmission filter
• 1 x 24101423380 - gasket for transmission filter

This item fits the following BMWs:
3/2000-2004 E46 BMW 323i 323ci 325i 325ci 330i 330ci
2003-2005 E46 BMW 325i with M56 engine
3/2001-2003 E39 BMW 525i 530i
2003-2006 E85 BMW Z4 2.5i Z3 3.0i

All sets of 12 now 10% off regular price!

Synthetic D4 ATF is suitable for use where Dexron III, Dexron II, or Mercon fluids are recommended. ATF D4 is similar to Red Line's MTL formula and can be used in many BMW manual transmissions where MTF or MTF-LT2 is called for. The D4 ATF provides significantly improved gear protection than most OEM oils. The balanced frictional characteristics provides smooth and consistent shifts for extended drain intervals. The superior stability compared to petroleum ATFs allows high-temperature operation without varnishing valves and clutches which leads to transmission failure.

Features:

• Provides G-4 level gear protection (suitable for transmissions and transaxles, like the Corvette T-56).
• Provides smooth and consistent shifts.
• More stable than petroleum fluids; suitable for extended drain intervals.
• Does not varnish at high temperatures.
• Improved cold weather characteristics.

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Liqui Moly is an official sponsor of Turner Motorsport. We work closely with Liqui Moly to ensure your BMW is receiving optimal lubrication! Select your vehicle to make sure you are viewing the best Liqui Moly options for your application.�

Leichtlauf High Tech fully synthetic engine oil is designed to provide the highest amount of engine protection as well as fuel savings and reduced oil consumption possible. Using proprietary blends of base oils and the latest additive technology, this oil will ensure smooth running gasoline and diesel engines in both high and low temperatures. Other amazing benefits include: optimum oil pressure at all speeds, rapid oil delivery at low oil temperatures, high shear and aging stability, turbo, multi-valve,�and supercharger compatibility, and long service life.

Approved for the following specifications:

• ACEA�A3-08�/�B4-08
• API SN / CF
• BMW Longlife-01
• MB-Approval 229.5
• Porsche A40
• VAG 502.00 / 505.00

Liqui-Moly is a German chemical company that offers top of the line engine oils, additives, and car care products that are designed to extend the life of your engine and�ensure the best lubrication and cleanliness off engine and transmission components possible. With more than 50 years of experience and reviews across the world from magazines and race teams, Liqui-Moly proves time and time again why they are one of the most innovative lead forces of performance automotive chemicals in the world.