This BMW E46 was built by Charles Rohn and Randy Noa for drifting. The team swapped in a turbocharged VR6 on custom mounts. The team started with a factory internals, custom intake and exhaust manifolds, nitrous system, and Link G4X Xtreme ECU. The motor made 570 hp on E85 fuel. Eventually they upgraded to a build motor making 650+ hp. Power is sent through a Nissan CD009 six-speed manual transmission and BMW M3 differential.
Source: Link Engine Management