Have the qtp d/p with cut out on my 04wrx wagon since last june now only problem that I have had with it was the butterfly plate screws came loose had the pipe open when to close it and the plate fell off...needless to say driving around with it stuck open is not too much fun but like stated before it comes with the blockoff plate. One call to qtp and they shipped me a new butterfly plate with screws free of charge! Great guys highly recommended.