Yep, I run one in my MGT. It is nice. Helped out the TT.21 a lot. I am putting a Mach .26 in there now, so hopefully the pipe will let the engine scavange (is that how you spell it??) properly and I can get max power.
I would definately suggest it.
I used to have one on the tmaxx as well, and it was like night and day from the stock pipe.
go for it.
oh, by the way, if you want a brand new one for 25 bucks check out ebay. There is this guy on there that sells them new all the time and the auctions usually end with a low bid. I got the pipe for my maxx for 26 or 27 bucks, and the mgt one for 25.
adrian