The GMC Typhoon is a high-performance version of the GMC Jimmy SUV. Produced in 1992 and 1993 by GMC, the Typhoon was based on the 1991 Jimmy.Both the GMC Syclone and Typhoon trucks featured a Mitsubishi TD06-17C/8 cm2 turbocharger and Garrett Water/Air intercooler attached to a 4.3 L LB4 V6 intake manifolds, fuel system, exhaust manifolds, and a 48mm twin-bore throttle body from the 5.7 L GM Small-Block engine.