I had the RRM on for only three days...09 GTS...for me the sound was way too much of a drone at 2800 3200 rpm. Took if off and going to sell it local, after sending "the boys" an email three times I never did get a reply

 

I love the RRM Exhaust and i dont know what you did wron but everytime i eamil them i email ROb and he gets back to me withen 2 days of sending an email evertime.