Mishimoto Performance Auxiliary Radiators - Toyota GR Supra (A90/A91) & BMW Z4 (G29)

OVERVIEW

The B58 Supra and Z4 rely on small side-mounted auxiliary radiators that heat-soak quickly under sustained load. Mishimoto's direct-fit Performance Auxiliary Radiators replace both units with a 30% larger core and dramatically more fin surface area, adding cooling capacity to keep coolant and intake temps in check on track and in hot climates — with no cutting or modification required.

SPECS

• 30% increase in core volume over OEM, with 180% more external fin surface area
• 1.57" thick aluminum core, full-aluminum construction with TIG-welded end tanks
• Strutted tubes for durability and leak prevention
• Core dimensions: 11.7" L × 9.5" H × 2.9" W
• Sold as a pair (left and right)
• Mishimoto Lifetime Warranty

PARTS INCLUDED

• 2x Mishimoto performance auxiliary radiators (left and right)
• Mishimoto Lifetime Warranty

TECH RESOURCES

• Direct-fit — no cutting or modification required; professional installation recommended
• This is the auxiliary-radiator-only upgrade. Our Performance Aluminum Radiator Kit (MMRAD-SUP-20K) already bundles these same auxiliary radiators together with an upgraded primary radiator — choose the full kit for a complete radiator package, or these on their own to upgrade just the auxiliaries
• Genuinely complementary upgrades: our Performance Heat Exchanger and Automatic Transmission Cooler

PART NUMBER

• MMRAD-SUP-20A

VEHICLE APPLICATIONS