Wiseco MAZDA MIATA 1.8L 4v 10.5:1 83.5MM Piston Shelf Stock Kit 2025-toyota-gr86-esi8177754 Requires custom fuel setup

Requires custom fuel setup

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

025 Oversized High Performance Rod Bearing SetThis Part Fits:

accommodating engine movement and thermal expansion

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 Requires custom fuel setupProfessional 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