Quote:
Originally Posted by entrepreneur177
The new M5 looks amazing in any color!
I just wonder why does they all have blacked out inner exhaust pipes. Seems like BMW did not corrected this small mistake on a nearly perfect car. 
looking forward for a fair comparison of new M5 and E63TT with performance package. That should be hell of a battle, and I'm not sure who's gonna win.  |
I think the reason why the inner pipes are blacked out is that the outer pipes have the valve that opens and closes (closed most of the time) which means that more exhast, and therefore more soot, collects on the inner pipes. Whenever I wash mine the 4 pipes look identical and then the inners get progressively more dirty. That will of course be cured once I have the break in service and the outer pipes are open more often
