After a 0.2 slower run at the strip i looked and why none of the improvements had worked and found a big power loss through the "new" exhaust system, rectified this with some straight throughs and gained quite a bit. I was using the data from the engine torque function. Realising i need too retune too suit i've had a right memory loss on how to do stuff. If anyone could check i've got this in SD before i alter my tune, many thanks John in wales where no one has a LS