My GTX had it removed and it took it a good 20 minutes to warm up in the middle of the winter. Didnt bother me much though. But man would it bog if you tried to take right off! Still spun the tires though haha.

Also it makes the paint wear off your intake manfold on the crossover.

Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street