Yes, the Transgo HD-2 shift kit is the shift kit you want as if fixes a few factory flaws. I love it. And firming up you shifts is a good way to prolong the life of that transmission. The stock trany will take a fair amount of abuse , but the 4L60E is prone to faiure. But don't let that scare you.
Even a tune will firm your shift points and change them.
This thread, Bobby (meanss), and some common sense helped me accomplish the next thread.
Shift kits are so easy, even a Garden gnome like me can do them.http://badass-of-ne.forumotion.com/modifications-performance-f7/transgo-hd-2-kit-install-t687.htm
Stop by some time Rob, I will take you for a ride in my car so you can feel almost exactly how your car will feel with just a shift kit.
And BTW, here is the link to the jegs exhaust. Just under $280 to your door.