i have a midwest racing 3400 lockup converter for sale that just came out of my 4l60e.
http://www.raceconverters.com/iStreet.htm
it has about one season on it and has no defects or issues. Midwest will restall or refresh this if you need it done. feel free to call them if you have any questions about there converters in general.

asking 300 obo

pm me with questions or offers

 

what is the str? and how many miles, or was this on a track only car?

 

Bump to the top for an awesome converter. I have a Midwest 3600 and will say they are badass. I love mine.

 

pm'd you with the answers...but here they are again for everyone else

not sure on the STR because it wasnt the focus when i bought the converter and they dont list it on there site....would probably need to call Midwest to find out.

i have one season on this converter....so at most i would say 3k miles and about 2-3 passes at the track.

this is a summer only car...track a couple times a year....and the rest of the time is just around town driving