do88 is proud to present a greatly improved gearbox oil cooler for manual / DKG / DCT gearboxes in the BMW M3 E90! Major advantages of the do88 oil cooler over the original: - 217% larger core volume, 2208 cm3 vs 696 cm3. - 178% larger active cooling area, 3456 cm2 vs 1242 cm2. - 18% lower oil temperature after the oil cooler under the same test conditions: 74°C vs. 90°C! - 110% greater oil volume, 0.65 l vs 0.31 l - Direct fit for the stated car models! - Drop-in installation, no modifications necessary, works with the original oil lines and mounting points. - Highly efficient 18-row Bar & Plate core. - CNC-machined connections for the oil lines. - CNC-machined brackets. - The cooler can easily be pre-filled, so the fluid in the system does not have to be changed. Ever since the first E30, the BMW M3 has captivated car enthusiasts around the world, and the E90 series, which has now been around for a few years, is no exception. Many consider it the perfect combination of everyday usability and performance. A true sports car with room for passengers. With its well-sorted chassis, robust construction and rev-happy V8 it is an almost perfect basis for a track car, but only almost. Runaway oil temperature in the DKG / DCT gearbox has been one of the few problems experienced with these cars. do88 has analysed the causes behind this and come up with a durable solution. This is the product for the driver who uses the car beyond the ordinary! Well suited to track racing, endurance events, track days or hard road use where particular demands are placed on durability without compromise. This is one of the products in do88's history that has taken the longest development time, which is clearly evident in the fit, finish and performance. Greater core volume, larger active cooling area which is what actually cools the oil, excellent fit and – of course – greatly improved performance. We guarantee you will be satisfied! This is one of the products in do88's history that has taken the longest development time, which is clearly evident in the fit, finish and performance. Greater core volume, larger active cooling area which is what actually cools the oil, excellent fit and – of course – greatly improved performance. We guarantee you will be satisfied!