Used this kit to extend my Stampede along with the FLM super tranny/diff combo and shock towers. Wow, what a difference!
Really great quality stuff. No instructions, but its pretty easy to figure out what goes where. Only trick is getting the screws on the chassis braces to line up properly. If you tighten any of the screws too much before you move on to the next screw it will seem like they don't line up, but just loosen the screws up a little and they line up perfectly.
Super happy with the way my truck handles now, 4s power is no problem!