A.I.TECH AIT-70N Wheel stud 12x1,25 L.70 for NISSAN ymm_81 Made from titanium – with

Made from titanium – with some parts cast in Akrapovič’s own foundry – this system will reduce exhaust system's weight by over 45% and deliver extra power and lower backpressure

Weight Reduction: -6

The ECE type approval certificate is not valid for these models

this link pipe set has no catalytic converters and delivers an impressive increase in performance

however it fits both versions (OPF and non OPF)

A.I.TECH AIT-70N Wheel stud 12x1,25 L.70 for NISSAN ymm_81 Made from titanium – withA. I. Tech's spline wheel studs are made of extremely high strength steel; the threads are obtained by stabilised rolling (a specific system to avoid fatigue cracks). They are combined with steel wheel nuts machined from billet and copper plated to optimise screwing onto the studs even at the high temperatures resulting from prolonged use of the brakes in racing.