Bear in mind that your engine needs to be in good condition before remap! Mine has only done 56k miles with stacks of history and I still needed a new MAF, Forge 007p, N75 Valve. It's still under boosting so looks like a new actuator is required. A 007p is a must with a remap, however the others just seem to be bad luck

I'm also running an uprated clutch/flywheel which is relatively new, if yours is getting on then factor in for a new one in the near future.