As you increase performance and drive more aggressively, it becomes more and more important to improve your car's ability to keep its various fluids cool. This heat exchanger increases the capacity of the stock unit, while reducing heat soak and increased surface area improve cooling efficiency. This results in consistent, reduced engine temperatures – very important for high-speed running and track events.

• +10HP/+20LB/FT without a tune
• Avoid going into limp mode during high performance driving
• 60% more volume than the stock unit
• 19% more surface area
• 40mm thick vs. 24mm thick
• Worth 2 points toward your Dinan badge

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.

Fits:

• BMW F80 M3 S55 3.0L
• BMW F82 M4 S55 3.0L
• BMW F83 M4 S55 3.0L