Thanks for all the comments and help guys, I am suspecting that the remap and possibly a change in the breathing apparatus may be the culprits. I will contact RTCC to discuss.
In answer to a couple of other questions posed I am told the car is producing 325-330bhp although RTCC did not provide a dyno readout - certainly feels like it is however, the difference is very noticable, although it feels like a slight flat spot has been introduced between 3K and 4K rpm. It's almost like the fly by wire throttle has also been remapped a bit. Interestingly the car was freshly MOT'd by RTCC AFTER the service and ECU remap.
Car also has a four brtanch Librands exhaust system.
I will have the bonnet seals looked at as well.
Once again - many thanks for all your responses.
