Originally Posted by Eugene-TAIWAN
How big is pipe size on the connecting pipes?
I have no idea really. If you call Gintani, they can tell you I am sure. I know it is a direct bolt on and the tips are 90mm
16' M3 Mineral Gray, DCT, Adaptive M sus., 19" wheels
15' Audi S4
13' Audi TTRS (APR stage 1, MSS springs)
09' C6 Z06
08' M3 Interlagos Blue: 6sp, Tech. & Premium Package