RSPANTERA RS Super Corner Seal

Car Maker: Mazda
Car Model: RX7 FD3S
By utilizing the expansion caused by gas pressure, it improves sealing performance and eliminates detonation, knocking, and crashes (cracks) caused by the side seal being pressed, and does not damage the side housing.
In addition, DLC processing improves sliding and initial break-in, improving low-speed torque and response. Can be used for normal and high-tuned engines.

For more details, please go through the below link
RSPANTERA RS Super Corner Seal