We used a modified (for larger studs) STOCK head gasket at Titan on the race car.

How's 1143rwhp with 3 people sitting in the rear of the car to TRY to keep the wheels from spinning (didn't work) sound?

The stock head gasket on the MKIV is a metal stopper type. There is no need for an aftermarket head gasket on the MKIV. If you have popped a head gasket, it's from a detonation event, or an excessive amount of timing (which causes detonation) that pushes cylinder pressures through the roof (if no detonation occurs).

Running a good bit of boost on pump gas while utilizing an AFC to control larger injectors is a good way to pop head gaskets, flatten rod bearings, and crack ring lands. This is assuming the car is "tuned" for a proper air-fuel ratio. Getting an air-fuel ratio correct is only HALF the problem. The other half is the timing map.

Good luck.