Genuine Mazda Side seal springs.
Here at EasyTuning we believe that nothing is better than stock OEM parts (exception, the Goopy Performance Water Seals, Goopy Apex and Goopy Corner seals).
https://easytuning.gr/index.php/en/54-store/rotary-engine/176-oem-side-seals-springs-oem#sigProGalleria4c7d66d8b2