are junk, my bro had one on his eclipse. Cheap pipe and even cheaper filter, rusted and got a hole in it, real crap. That all I know about them, not many celica owners use there products, Injen
Your going to be the lab rat on this one I think, just keep your stock parts handy in case something goes wrong. I really don't see what this will do for the car, just press the pedal down, bingo full throttle.