Update.
Boost pipe fail..lol
Got fuel and rail pressure mapping about right, which seems to have stopped the bad missfire which the stock and old map had across the whole band. Started to rescale then n75 mapping to allow the k04 to work the the 2.5bar maps sensor, without this the boost will become uncontrolled and climb at the top end of the rpm(which was the cause of the limp mode on the last mapping) got the car running 270lbft 320bhp @1.2bar on a basic custom map which is seeing the boost follow the requested line. The peak load request is sitting at 184% which for some reason I cannot get any higher request at the moment, I think there is a map or axis in your software which is capping the load, I have found one of the axis on one of the torque maps is set t0 180% So I have rasied it and need to test and log in the morning. A part from the its fast as feck and very smooth.
I thought that boost pipe would fail at one point, bloody dum that connection.
Happy to hear it is going well mate 
. I do have the other map sensor if it makes anything easier. I was thinking can we have it spiting flames and popping 
I like righting a few granny’s off lol.
You can have the car for as long as needed i am having fun killing the mk4 (i forgot how bad they are standard)
Ps, did u see if them air filters made any difference?
That boost pipe was bad by design, I have re-engineered the alloy joiner so the OE clip fits in flush and cannot come out.
I dont think there is a way to get pops and bangs on the ME9 ecu as the fuel strategy is nothing like the ME7 setup, when tuning for power we use the homogenous fuel mapping to make power at a richer rate, but the combustion is that good its hard to dump a little fuel. There are fuel realted maps for shift points which could be use but might only work with DSG? If I get the back log of jobs out I will take a look for you, What number cell rate sports cat are you using
The 2.5bar maps sensor will be fine, (it would be a total pain to setup in mapping, maybe only way to do it would be use an ed30 ecu?)
I am not going to run a spike of boost I will aim for clip 21psi and hold just under it to get around 300lbft over most of the torque band, where a stage2 map for HPFP on a oe k04 car would peak 23-24psi.
