Oiling System

Upgrade your stock oil cooler thermostat for improved performance. Swap out your existing cover with ease, replacing it with a durable billet cover. Upgrade from your 110-degree Celsius thermostat to a new 70-degree Celsius version for faster oil flow and extended temperature control. With oil temperatures reaching 230 degrees Fahrenheit by the time your factory thermostat opens, initiating oil flow at lower temperatures proves more effective than attempting to cool down already elevated temperatures.

Utilizing a factory-style thermostat, this upgrade can be used in all weather conditions and allows your engine to warm up properly unlike thermostat bypass kits.

Kit contents:

Billet thermostat housing cover
Replacement gasket
Hardware
Lower temperature thermostat - 70c (158F) vs Factory 110c (230F)
Low temp thermostat spring

BMW B58 / S58 Blue Billet Engine Fluid Cap Set is the perfect combination of style, durability, and performance, designed to enhance the look and function of your BMW’s engine bay. Crafted from high-quality billet aluminum, this cap set is engineered to be a direct replacement for the factory caps, ensuring a precise fit and long-lasting dependability. Unlike cheap plastic covers, these caps fully replace your OEM components while maintaining the critical pressure relief functionality.

Designed with both aesthetics and performance in mind, the anodized blue finish adds a sleek, high-performance look to your engine bay while providing excellent resistance to heat, corrosion, and wear. The set includes billet engine fluid caps that require transferring the OEM pressure relief valves to ensure optimal system performance.

• Direct replacement design – Replaces factory caps for a secure and precise fit
• Anodized blue finish – Enhances engine bay aesthetics with a stylish, high-performance look
• CNC-machined billet aluminum construction – Ensures superior durability and longevity
• OEM pressure relief compatibility – Maintains factory pressure relief function for safe operation
• Heat and corrosion-resistant – Built to withstand extreme engine conditions
• Easy installation – Requires swapping the pressure relief valves from your original caps

Upgrade your BMW with the BMW B58 / S58 Blue Billet Engine Fluid Cap Set for a premium look and high-performance functionality.

BMW B58 / S58 Black Billet Engine Fluid Cap Set is a premium upgrade designed to enhance both the performance and aesthetics of your BMW’s engine bay. Crafted from high-quality billet aluminum, this cap set provides superior durability while replacing the factory plastic caps for a sleek, high-end look.

Engineered to maintain full OEM functionality, these caps integrate the original pressure relief valves, ensuring proper system operation. The deep black anodized finish adds a bold and aggressive appearance while offering excellent resistance to heat and corrosion.

• Precision-machined billet aluminum – Stronger and more durable than factory plastic caps
• OEM pressure relief compatibility – Ensures safe and reliable system performance
• Sleek black anodized finish – Adds a high-performance look to your engine bay
• Heat and corrosion-resistant – Built to withstand extreme conditions for long-lasting reliability
• Direct replacement design – Fully replaces factory caps for a seamless fit
• Simple installation – Requires swapping OEM pressure relief valves for full functionality

Upgrade your BMW’s engine bay with the BMW B58 / S58 Black Billet Engine Fluid Cap Set, combining premium style with high-performance reliability.

BMW B58 / S58 Silver Billet Engine Fluid Cap Set is a high-quality upgrade that replaces the factory plastic caps with durable billet aluminum for enhanced strength and a sleek, premium appearance. Designed for a perfect fit, this cap set enhances both the aesthetics and functionality of your BMW’s engine bay.

Unlike adhesive overlays or plastic replacements, these billet aluminum caps completely replace the OEM components while retaining essential pressure relief functionality. The precision-machined silver finish offers a refined look while providing superior resistance to heat, corrosion, and wear.

• Direct replacement – Replaces OEM caps entirely for a factory-like fit
• Sleek silver finish – Provides a clean, high-end appearance
• Billet aluminum construction – Offers long-lasting durability and strength
• OEM pressure relief compatibility – Maintains proper system function
• Heat and corrosion-resistant – Engineered to withstand extreme conditions
• Easy installation – Requires transferring OEM pressure relief valves for full functionality

Upgrade your BMW’s engine bay with the BMW B58 / S58 Silver Billet Engine Fluid Cap Set, the perfect blend of style and performance for enthusiasts who demand the best.

High oil temps are one of the triggers that causes the engine electronics to curtail boost, cut power, and possibly switch to limp mode. The stock oil system was not designed with enough cushion for running more boost. We have seen limp modes come from stock vehicles on the race track. To prevent limp modes and reduced performance, Dinan has developed this oil cooler kit with much more surface area than stock.

The Dinan oil cooler kit fits in the stock location behind the front spoiler on the passenger side of the car. This is an ideal location to maximize the ram air effect from the front bumper. New air ducts and vents into the wheel well help improve air flow. PTFE hoses with race-quality fittings and all hardware are included for install. Some Dinan oil cooler kits can even be used to upgrade cars that never came with an oil cooler. Once you see the Dinan oil cooler side-by-side with the factory cooler, you will understand why it's so much better. The Dinan cooler is bigger in every way - larger capacity, greater surface area, and more cooling tubes.

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 oil cooler kit is worth 3 points towards your Dinan badge.

This item fits the following BMWs:
2007-2010 E90 BMW 335i 335xi - Sedan

Ensure optimal performance and longevity for your BMW N54 engine with this comprehensive upgrade kit assembled by enthusiasts at Turner Motorsport!

High-performance low-temp oil thermostat for superior cooling efficiency Anodized aluminum oil thermostat shaft ensures durability and surface protection Premium quality thermostat spring and bung for reliable operation Anodized thermostat cover with external fins maximizes cooling effectiveness Complete installation kit includes gasket and hardware for hassle-free setup Includes Liqui Moly Special-Tec LL 5W-30 oil, new oil filter, filter housing gasket, and drain plug for a complete service Elevate your N54's cooling system and maintain optimal oil temperatures between 194F and 230F with this all-inclusive upgrade kit.