OBX Votex PowerFlow Throttle Body Spacer 03-11 Mazda RX-8 RX8 1.3L All Precision CNC machined from super lightweight T-6061 T-6 aircraft grade billet aluminum Mega spiral flow design for fuel efficiency, save gas, gain power Faster fuel induction for more horsepower Dyno-tested and proven on race track Backed By Lifetime Warranty Against Defects