. "Sequential" . . . . . . . "twin turbo" . "sequential turbo" . "bi-turbo diesels" . . . . "sequential" . . "TT" . . "two small turbos" . . "parallel" . "compound VGT turbo" . . "Sequential Twin Turbo" . . "two turbos" . . "twin-turbocharged" . . "bi-turbocharged" . "turbo" . "biturbo" . . . "Twin turbo" . . . . "Twin" . "twin" . "twin TR30R" . . . "Sequential twin-turbo" . "Twin-turbo" . . "'biturbo'" . . "twin sequential turbo" . . "Twin-Turbo" . . . . "sequential twin-turbocharged" . "T" . . "double-series" . . . . "BiTurbo" . . "twin turbochargers" . "bi-turbo" . . "sequential twin-turbocharger" . "Twin Turbo" . "Dual-Stage turbochargers" . . "two turbocharger" . . . "twin-turbo" . . . "two-stage turbocharging" . . "Twin Turbocharged" . . . "Twin-turbo" . "Compound VGT turbo" . . "double turbo" . "twin-turbocharger" . . "Twin-turbo#Quad-turbo" . . . "Staged" . . . . . "twin turbo charging" . . . "sequential twin-turbo" . . "sequential turbos" . . . . . . "two stage turbochargers" . . "BiTDI" . . "twin turbocharged" . "2 x IHI turbochargers" . . . . . . "Twin-supercharged" . "pair of turbos" . "\\\"Biturbo\\\"" . "Biturbo" . "two" . "two-stage turbocharged" . . "Twin-Turbocharged" . "twin sequential turbocharged" . . . . "Bi-Turbo" .