So there I was driving to dinner last night... when my car lost power and it started to steam out of the bonnet!! Popped it open to find the CTS had dislodged itself and spat it's coolant everywhere! Didn't think too much of it as replaced the CTS and it ran ok....but not for long. Idle was all over the place, the car would stall if you dipped the clutch and wouldn't tick over, ran some VCDS and it pulled up the MAF and other air flow sensors. On way home today, bought some coolant, water, new CTS clips and O-Rings as well as a thermostat to put into the car tonight. Drove the car to my friends garage to get it into the light and on some ramps, first test was an exhaust gas test from the coolant tank. The lovely blue coloured liquid went greeny / yellow straight away Head gasket had gone... I'm suspecting when the CTS flew out of it's housing it managed to get coolant into the cone filter and into the engine. What a ******!! So next month is new head gasket time, I'm going to buy a head gasket set and get to work taking the head off etc, get it skimmed and all back together asap. While I'm at it, I really want to fit an oil catch tank, the Forge TIP I have in my garage and clean the engine up a bit. Get ready to fit a FMIC. Anyone got any other ideas what else to fiddle with under the bonnet whilst the car is off the road? Also, what gaskets do people recommend? Stealers or aftermarket? I'm planning on going stage 2 so I was thinking I want something a bit stronger, I'm currently running 200BHP, but with that in mind and my MAF playing up (disconnected it and it ran muc better) should I look at trading mine in and getting one from a standard S3 as they are 225BHP standard? Would the remap take better to my car with the different MAF?