CSF #8179 High-Performance Auxiliary Radiator - G-Chassis / A9X Supra B48/B58

These are the side radiators that help cool the B58 in the G-series BMWs and the A90 Supra. CSF's version adds a thicker aluminum core and a redesigned rock guard. The factory guard's vertical channels only line up with the stock core, so on an aftermarket radiator it blocks a lot of the surface. CSF built its own guard, checked in its wind tunnel, so air reaches the full core while debris stays out.

What you get

• 2-row, 42 mm core with 6.5 mm multi-louvered fins and CSF's B-tube design.
• All-aluminum, TIG-welded construction with a thermal black coating.
• Redesigned rock guard that lets more air through than the factory guard.
• CNC-machined brackets and OEM-style quick-connect fittings for a plug-and-play install.
• 2-year limited warranty from CSF.

Good to know

• The same radiator fits either the left or right side as a drop-in, and it won't interfere with aftermarket aero.

Brand: CSF · Part #: 8179

• Ships from the brand or distributor, usually in 3–7 business days.
• Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
• Unused parts can be returned within 30 days. Some items are marked no-refund in their description.

Full details are on our shipping and returns page.