Raceworks Metric M12X1.5 Male to M10X1.0 Inverted Female Reducer Fitting.
Raceworks Fittings are designed to withstand the most extreme performance applications, while looking simple and professional in any engine bay. All Raceworks fittings and adapters are full flow, and alloy fittings are hardcoat anodised, and machined from high grade 6063-T6 billet aluminium.
All Raceworks products come with a 2 year warranty.