I'm sure there must be some of u here on the forum who have fitted the Supersprint exhaust system (rear muffler and the section before it - ie. 2 pic kit) on a 6 cylinder M54 engine. Could i have some feedback on the system and possibly a listen as i am considering installing this soon (would prefer the Eisenmann as it seems very well made but as it has no LTA approval..dont want the hassle). Thanks.