I have to replace my T45 in my 99' cobra and I found several different ones that will seem to work, but I keep coming back to the same question. Is the T45 in the cobra any better than the one in the GT? Is it rated for any more HP or beefed in more in any way? Was there any year that was better than the other? I would appreciate all opinions, thanks. I'm buying one here in the next couple of days so please help.