me too jatco auto's are no good my car was making 172rwkw and she was slipping bad if u want a strong auto go for a strengthened holden trimatic conversion which is what the subzero r33 is using and alot of 10sec vl's , I think they cost around $3k - $4k I also rang up yarra valley auto to strengthen the standard auto got quoted $2500 stall is increased to 2800rpm drive in drive out, I chose to go standard manual gain more power more responsive....cost wise I got ICE to do the pedal box assy, clutch master cylinder and the lines. mate and I pulled to motor and auto out before hand. got the car back with the box put it all back together myself which worked out much better price wise on labour saved about $1k ended up spending $2500...