Guestbook

My son won his class in 2009 with TDC on a full race YFZ450 and the stock bike pulls me, a double X guy, up any dune better than any other pipe I've tried.

Awesome Pipe. Great power,Pulls really hard in the bottom end. I am very impressed with it all around.Plus it looks awesome on my bike. and It makes me go fast!!!!!

Great power! Hard hit off the bottom and pulls to the moon, and not to mention looks sick! i have rode atleast six other systems on my 07 yamaha from curtis to dr d.. and the tdc system by far is the system for me. i have one on my practice bike to thrash and its holding up great and one on my race bike! great costomer service!

Very nice exhaust , awsome quality , great performance and looks great bolted up

wow this pipe is awsome. it pulls really hard and is great quality. and they have the best customer service.