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I now have the GTP rear fascia, but the exhaust system I ordered back in December isn't going to ship for another month! I was thinking about doing something different and putting in an 18 inch 4" round magnaflow muffler where the resonator was, removing the muffler, Y piping it after the rear axle, and have two small magnaflow street series mufflers with tips coming out the back. I measured everything and it should fit. Also, the stock exhaust on my g6 is only 2 inches! The only thing that is 2.25 is the muffler tip! I thought eveything was 2.25"? Does anyone know if the GTP exhaust is 2.25" all the way through? Thanks......
middle muffler where the resonator was.
14" long mufflers/tips for the back Y after the axle.
If the GTP stock exhaust is only 2" then I will probably cancel the order for the GM factory system.

middle muffler where the resonator was.

14" long mufflers/tips for the back Y after the axle.
If the GTP stock exhaust is only 2" then I will probably cancel the order for the GM factory system.