Wiseco MAZDA MIATA 1.8L 4v 10.5:1 83.5MM Piston Shelf Stock Kit 2025-toyota-gr86-esi8177754 91 octane calibrations have a

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:

Two 0–5 V analogue outputs: Ethanol % and Fuel Temperature for ECUs

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

Wiseco MAZDA MIATA 1.8L 4v 10.5:1 83.5MM Piston Shelf Stock Kit 2025-toyota-gr86-esi8177754 91 octane calibrations have aProfessional 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