i got a mk3 one from GSF, along with VW pipes into the matrix from the engine. before i had no hot air, even when the car was at full temp, and that was last winter. ive only really had it idling on the drive due to it being work in progress, but damn its toasty. best thing ive done, forget the G-lader lol..
.. just looking at the threads on this, i bet the newer VW owners think we are simple, All we want is some heat and we are happy lol.