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View Full Version : GM-3 turbo



NH2112
03-07-2006, 08:25
What years & models was this used on? I'm thinking of buying another turbo for my truck because the guy I got the engine from welded the wastegate shut. :mad: Are any of the ones I'm aware of (GM-3, GM-4, GM-8) "better" than the others? Also, will an operating wastegate really make that much of a difference? I guess that should have been my first question LOL