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      02-28-2013, 12:05 PM   #211
First Lieutenant

Drives: 2006 E90
Join Date: Dec 2012
Location: New Jersey

Posts: 312
iTrader: (0)

Actually from what I understand CDT's have been around for a while. The HD's are the top of the line , the classics right below that from what I understand.

They sound really good to me an obvious upgrade over the stocks. The twwets are silk so theyre not harsh. Perfect for me, again YMMV.