update after a few days driving with the MTM M-Cantronic upgrade!
firstly the quality of the loom, plugs and fittings is as factory. Bosch connectors and thenloom is manufactured by the same people who make the OEM looms!
the car is so, so quick up through the rev range. It all still feels factory-esque but just massively enhanced! mine is manual but with a optimum upshift, the exhauset pops and sounds awesome! its all plug and play, only PITA is removing thr shear head bolts from the factory anti-tamper ecu cage which id reccomend centre popping and drilling the heads off with a 6mm drill bit! they are alloy so come away easily.
I tried mole grips at first but i slipped and scratched then cage so cant really put it back on if needed. anyhow a new one was only £21 from dealer which a kind friend ordered and secured for me!
all in all, as this sytem communicates with the origional ECU and car systems its essentially a really neat and safe solution to piggy back mapping as all of the sensors are still in play and therefore safeguards the failsafe features of the engine management but does not register or show tamper codes! this is my wifes car, but i find myself nicking it everyday, its way more fun than our 997C2S but it eas a close run thing before the power hike! Now its so sneaky yet brutally quick, its just a hoot!!!
I personally think the quality of hardware, prestige, history and reputation of MTM and the amount of develeopment r&d thats gone into this product justifies the £1550. if you see the kit in the flesh, you will also appreciate the quality components! also i have to say QST Kim Collins et al have been fantastic in terms of customer support and service! thouroughly reccomended!