Here is a dyno sheet with the before and after figures from dyno tuning. Engine is a 366000km stock item with rush headers , manual R154 box fitted. Supra brakes all round and raceseats in the cabin. The seats don't move forward enough for me to reach the pedals easily. Lucky the owner has longer legs than me. I flicked out the stock ECU and fitted a Vipec i44. I also stripped out the AFM to find it netted 3rwkw by doing so. They are definately a restriction so I'm glad I got rid of the internals. Gains from 145rwkw / 300nm to 179rwkw/350nm is a massive improvement. Traction control is all still operational and a/c is controlled by the new ECU too. Vehicle now also has OBD2 which enables customer to monitor live data via Bluetooth devices.