Fred thanks for the PM
I am indeed a couple hours from Birmingham....knowing you are Stateside, when I first read 'Birmingham' in your reply I thought you must mean Alabama!
I should have stated more clearly that I thought it was possible to flash the ECU with a FACTORY 3.4 tune.
And yes Bfan, it is mainly down to the larger MAF housing that we then can exploit the added performance of a remap.
The ECU will adapt for a small percentage in increased flow but jumping up to the larger 987 MAF housing it too much without a recalibration.
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