Originally Posted by OperationAlfa
Not sure yet chris. The GTA's are normally a fair bit under the quoted 247, but with the AD remap I was expecting at least 250.
I dont think that a fair statement, mine unserviced and bog standard did 258BHP last year on Dastek dyno in shootout mode. Maybe your MAF is dying.
Can you map the car on the standard map and get some A/F ratio logging?