When this 1996 Opel Omega B left the factory it was powered by a 3.2 L V6. The Polish owner however decided a turbocharged 2.3 L B234 from a Saab 9000 would be more enjoyable. The engine was built with B205 head, B235 pistons, GT35/30 turbocharger and its displacement was increased to 2.4 liters. This helps the engine produce 418 horsepower and 399 lb-ft of torque. The transmission is a R25 five-speed manual from an Opel Omega.
Source: RacingForum.pl via ESD reader Peeter