Mazda RX3 street car, Sequential gearbox upgrade

Weve long been a fan of Ross savage little Mazda RX3 street car. The car has dipped into the 8second zone previously, but in order to improve consistency and reliability, Ross has recently made the switch to a Samsonas 6speed sequential gearbox. With no cutting of the factory trans tunnel, the box has been adapted using Promaz Automotives new to market light weight billet CNC bellhousing which is manufactured in house. The same Promaz 13B bridge port rotary engine is still in place with power transm