are they good to get, and what does it help, and how much more performance can u expect??

 

i was just gonna ask something similar...i just was looking at the transgo shift kit and its not too expensive at all...maybve this would be a good idea-my iroc has 55k miles and i wanna take every precaution necessary to keep my tranny in good shape and running good and get good shifts, etc...is this really easy to put in, what is the basic make-up of a shift kit? thanks
(sorry to add on to ur post like this)

 

trans go seems to be the way to go....

it gives firmer shifts... doesnt really add performance in horsepower, but keeps the tranny working better longer..

 

Try a search, you'll find all the answers you need.

TransGo is the way to go, "only real true shift kit", fixes problems with the 700R4 unlike kits like B&M. Pretty much what you'll read in searching.

 

has anybody used this tci valve body performance inprover kit, or just go with the transgo??
http://www.yearone.com/serverfiles/f...ain2.asp?cat=G
found under driveline!!