Anyone have experience with the B&M electronic gadget you hook up to car to improve auto trans. It cost like $50 at Kragen wondering if it is worth it.

 

I have one and yes it does help firm up the shifts noticeably and there are settings 1)stock 2)firm 3) firmest, since I am haviung a race trans built with a custome shift kit I don't reaaly need mine so if you want it you can have it for $20 shipped.

let me know.