It’s not often you see a turbocharged 9.2L big block Chev spooned into a Mazda RX3 coupe, but that’s exactly what Castle Hill Exhaust and Performance Centre have done, and we’re glad they did. Producing around 3000HP with the help of 2 Precision Turbo & Engine 98mm Gen2 turbochargers this RX3 is the fastest in the X275 Radial class in Australia at the time of filming with a 4.26 @ 182mph on the 1/8th and a 6.7s pass on the 1/4 mile, although it’s not set up for this. The 560cu Chev runs a Crower