First I'm an idiot and most times above simple routine stuff I'll end up paying someone.
Not sure if this has been mentioned. One of the finest some what affordable Japanese sports cars made was the 1992 and above Mazda RX7's with their sequential twin turbochargers set up.
quoting an article in Hemmings Sports and Classics mag:For a mass produced sports car from Japan that had turbos was a blast to drive. More from a driver vs mechanical engineer can say for driving thats one of the best turbo apps ever sold!The sequential twin turbocharged system was a very complex piece of engineering, developed with the aid of Hitachi and previously used on the domestic Cosmo series (JC Cosmo=90–95). The system was composed of two small turbochargers, one to provide torque at low RPM. The 2nd unit was on standby until the upper half of the rpm range during full throttle acceleration. The first turbocharger provided 10 psi of boost from 1800 rpm, and the 2nd turbocharger was activated at 4000 rpm and also provided 10 psi (70 kPa). The changeover process was incredibly smooth, and provided linear acceleration and a very wide torque curve throughout the entire rev range.