Radium Engineering BMW E9x 3-Series (N54/N55) Fuel Surge Tank Regulated (Pump Not Included) Cooling>Radiators The smaller fins significantly increase

The smaller fins significantly increase the heat exchange surface area improving overall cooling efficiency

This improves durability and longevity so you can be confident it will hold up to hard driving conditions

yet add little restriction

and performance tuning

but also improves the cores ability to dissipate heat

Radium Engineering BMW E9x 3-Series (N54/N55) Fuel Surge Tank Regulated (Pump Not Included) Cooling>Radiators The smaller fins significantly increaseDrop in billet fuel pump hanger for BMW E9x models and similar. Can hold up to two aftermarket fuel pumps. Collector box and built in pressure regualtor included. Fuel pumps sold separately. Regulator can be bypassed for converting to a full return style system with an engine bay mounted regulator. Compatible with the family of Walbro "450" fuel pumps.