CSF Cooling - Racing & High Performance Division BMW S58 -Level-Up- Charge Air Cooler Manifold - Thermal Dispersion Black (8233B) 3101 This is the key difference

This is the key difference between the BC Racing DR series and DR series

And it could already be called the new Performance rather than just the high quality

With up to a 75% increase in flow over stock

2006 BMW 330i/xi L6 3

CSF Cooling - Racing & High Performance Division BMW S58 -Level-Up- Charge Air Cooler Manifold - Thermal Dispersion Black (8233B) 3101 This is the key differenceBMW S58 "Level Up" Charge Air Cooler Manifold Thermal Dispersion Black. With the larger and more efficient intercooler performance, lower pressure drop, included fuel rail & kit for top feed port injection, and other industry leading features, the CSF Level Up Manifold allows S58 owners to maximize performance. CSF worked closely with its strategic manufacturing partner PWR and Local R&D Partner Studio RSR on the development of the "Level Up" Charge