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  1. Exhausto system 159 Ti 1750 TBi

    Alfa 159, Brera & 946 Spider
    Hello everyone. I am thinking to change the exhaust, on my 159 Ti 1750 TBi, but I am not sure about the pipping sizes. I`m thinking to go with a 3" downpipe and center line (3") and for the Y reduce to a 2.5" in each side. I will removed de Cat and will use two 2,5" (inlet/outlet) straight...