I decided to take antoher look at Vorstiner’s titanium M3 exhaust.  I’ve been looking around and so far I haven’t seen too much that is on par with what Vorstiner put out.  Recently the dyno numbers came back from Evosport and it turns out that in addition to shaving off 38lbs it also added 14 horses and bumped up the torque by 13.24 ft/lbs.  So now we know for sure this exhaust isn’t just pretty piping.