Wiseco MAZDA MIATA 1.8L 4v 10.5:1 83.5MM Piston Shelf Stock Kit 2025-toyota-gr86-esi8177754 Utilizes OEM E-brake by integrating

Utilizes OEM E-brake by integrating iron sleeve into aluminum hat

Requires custom fuel setup

91 octane calibrations have a less aggressive ignition advance map to help compensate for lower octane fuel blends

Our engineers use Computational Fluid Dynamics (CFD) software to optimize the runner and velocity stack (bellmouth) system for proper resonance tuning and airflow

Integrated DMR-RA regulator eliminates remote mounting

Wiseco MAZDA MIATA 1.8L 4v 10.5:1 83.5MM Piston Shelf Stock Kit 2025-toyota-gr86-esi8177754 Utilizes OEM E-brake by integratingProfessional Series forged racing pistons from Wiseco are no expense spared pistons designed for the serious racers and builders. Packed full of custom level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco? s Professional Series. This Part Fits: Year Make Model Submodel 1999 Mazda Miata 10th Anniversary