I may be aquiring an Audi TT 225hp K04 turbo and manifold. I know the turbo is different than a bolt on K04 upgrade, as the exhaust manifold is different, but does anyone know offhand if a standard K03 downpipe will bolt to the TT K04. The 225 downpipe is different than the standard downpipe, because it has 2 cats, but not sure of a bolt up. And also the TIP... is that different, or the same as a K03 sport, I think 44mm? Any help would be appreciated, thanks.