Has anyone got any experience of Powerflow exhaust systems? What do they sound like, cost? /ubbthreads/images/graemlins/noidea.gif Any increase in power?????? I'm a bit short on alternative options as I run a 80 B4 2.6E Quattro and nobody seems to make sports systems for that model. /ubbthreads/images/graemlins/mad.gif