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    1997 K2500 GMC 7.4L

    I rebuilt the engine in my 96 Suburban and tried to find a way to get rid of the restricted factory 1-7/8” Y pipe without going to headers. Solution I came up with was a GM Y pipe from Jegs 555-31002 which is two 2-1/2 into a 3” and then a Walker 44840 intermediate 3” pipe (you may need a...
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