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Message: [QUOTE="Cr500, post: 576262, member: 9468"] I used to make a outlet for the stock 3 bolt turbine housing that used a 99 up dp flange so you could bolt on a 99 up 4" dp. It was a nice part, radiused from 3"-3.5". It took massaging but it was never that crazy of a job to get the 4" tube in there. I always at least replaced cab mounts with polyurethane ones to get cab right. But if I mounted a turbo square on engine kinda like yours a 3.5 was usually all I built. There are just things on a 99 up that are taken for granted, room at rear of motor would be one of them! [/QUOTE]

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