plz help - turbo muffler on N/A (future plans for FI)

Originally posted by Civic_Addict


The turbo version has a smaller inlet? That sounds a bit backwards. Usually turbo exhausts are larger. But likely no power difference between 10mm.

nono, the turbo has the bigger inlet. turbo version has an 80mm inlet (roughly 3") and the N/A version which i have is 60mm (which is roughyl 2.25").
someone told me about losing backpressure with the turbo muffler. will it make that much difference? i thought my 2.25" piping + resonator + cat is enough to keep enough backpressure?

thanks guys