Auxiliary Radiator Upgrade, CSF - F8X M2/M3/M4

All-aluminum aux radiator for F87 M2, F80 M3, F82 M4 with more capacity.

All-aluminum tube-and-fin auxiliary radiator upgrade for either the left or right side of F8X. This is a modular aux radiator that works with either the Left (engine cooling) or Right (intake charge air cooler) systems. This is a direct replacement for the stock aux radiator, installing with the original hardware and hoses. The CSF F8X aux radiator has more rows and more tubes in its core than the stock original, increasing surface area and volume.

More features -

• 10% increase in tank volume
• 2-row 42mm thick core
• More cooling tubes = more surface area
• CSF B-tube technology
• OEM plug-and-play upgrade with original hoses
• fits Left (engine cooling) or Right (charge air cooler)
• includes rock guard

Replaces BMW part numbers 17112284603, 17112284604.

This one part number can be used on either side. The fittings must be swapped to the opposite side. Plugs are included for the un-used ports.