qpeng is plug and plug. just take out your engine loom and ecu and replace it with there, most you do is splice in 5 wires.
qpeng power figures are taking into account you run an intercooler and decat. i think the BAM is 270bhp with qpeng?
as for pricing, engine is say £1000 for a BAM on average, then qpeng loom/downpipe/ecu, etc is £1200. so £2200 as a base figure. i have replaced a lot of parts with new ones and had to upgrade my brakes, so got all new brakes..... and loads of little bits and bobs that add up. think im looking at around £3500+
Mike - as for remapping the extras on. ben @ qpeng said the ecu is made to run cooler and 2.5" decat system. i will be running this
but any extras you do, apparently the ecu can take other mods into account. If you do any major mods, they will remap it for free, but this only applies when using VAG parts, say a k04 upgrade. which is cool, so if at any point i want to put on a k04, i can get it remapped for free!
if ya need any more info about the conversion, let me know. anything, like parts needed and stuff. i got a list of everything i have bought so far and prices. scary when you add it up......
LL