I am not sure you can get a new BAM?
BAM is much better..
1. I don't care about this, but it has EURO COMP 3,4,5....???? (or whatever 1 more than the APX) that means it currently can drive you to borough-market and the elephant and the castle
2. It has an Exhaust Gas Temperature Sensor -- This adds shed loads of fuel to try and cool the cylinders, if the EGTs exceed a set number of degrees C - default I think is 920, it was sold as a way to protect the engine, but I think it was added to try and combat the hotside from cracking, but it didn't work because they all crack#
3. It has VVT - don't get excited it is no Honda VTEC, it is designed to try and control emissions when the engine is cold. example my old BMW e30 530i and my Wife's e36 323i straight 6 engines had 7 injectors when it was cold it just ran an extra injector into the inlet manifold - the VVT tries to save fuel when cold (which in turn stopped the extra poisons killing all the kids down the street being poisoned on their way to school after all the adults drove their Bimmers to work leaving a bunch of poisonous gas in the cul-de-sac
4. It has a Wideband o2 Sensor - nuff said, there is absolutely no point in trying to map one of these delicious 1.8 20v Turbocharged ME7 Motors with Narrowband - absolutely every decent guide starts with "If you do not have a wideband o2 sensor, then get one" A wideband o2 sensor is lightening quick (< 10ms) and provides feedback of the exact lambda / AFR of the gas in the downpipe directly after the turbo -> downpipe flange at any rpm, duration, throttle plate angle, duration, temperature, throttle pedal position etc etc
It allows accurate fuelling which is the most important part of mapping one of these cars, you set the desired mixture etc 12.5:1 (for best power) (0.85 lambda) and the ECU will adjust the fuelling (injector on time in ms) to meet the desired mixture, if it overshoots it, it'll be reduced again etc - an amazing thing to be able to control. Learning about this and the default settings will teach a person, even in a stock TT 225 BAM, the most sympathetic way to drive the car is "part throttle for cruising", but if you ever want to accelerate hard etc - always put you foot flat onto the floor as only on WOT (Wide Open Throttle) will the AFR / Lambda be adjusted to provide some additional enrichment to cool and protect the engine components - driving at 80% throttle might seem like the same power but unless the Throttle Plate > 95% Duty Cycle the desired lambda will be 1 (14.7:1 AFR)
With a narrowband it essentially has 2 signals > 1 or < 1 (1 Lambda is 14.7:1 AFR) and this only works with partial throttle, the narrowband cars do not use the narrowband o2 sensor when driving on WOT, a pre-set fuelling will be configured (based on Air Mass maybe?) and a tuner might well fit their own Wideband sensor during the tuning session. then the next day the weather changes the fuel octane quality is not the same etc etc
AMK (S3 210 and possibly an early Cupra R?) and BFV (240 QS) are identical to the BAM apart from the ECU map, and clutch in the case of the QS (It's lighter and weaker)
