When swapping to a Quick Change Rear and Sub frame setup in your Mazda RX8 it’s important to also improve the strength of your axles. These heavy duty axles are designed to fit perfectly and offer maximum reliability and strength. Weather your drifting, launching at the drag strip or road racing your car these have what it takes to handle the abuse. This Stage 5 axle set is made exclusively for Sikky Manufacturing by The Driveshaft Shop to support over 1000 hp so you can be assured this is the highest quality option available. Note these axles will not fit with your factory 31 spline wheel hubs. The wheel hubs will need to be broached to the larger 33 spline size.