CTS Turbo A90/A91 B58 Toyota Supra Billet Coolant Cap

The CTS Turbo Billet Coolant Cap replaces the factory plastic unit on A90 and A91 Toyota Supra models, along with G29 BMW Z4 M40i variants. Precision-machined from billet aluminium, this coolant cap delivers enhanced durability and improved sealing under the demanding conditions of performance driving and forced induction applications. The robust construction resists heat cycling and pressure fluctuations better than OEM plastics, while the knurled finish provides superior grip for easy removal during maintenance. A direct bolt-in upgrade that adds both functionality and visual appeal to the B58 engine bay.