same hear no problems with them being gutted although it took me a while to get it done, and it is surprisingly easy to do for what all it does to the car. And trust me you will fell the differencee and certainly hear it, about the car being louder when it i scold that is true but as it warms up it queits out but that is true with lots of performance exhaust systems

98.5 Black SE ATX S&B filter, SVT MAF, optimized SVT TB, mesh grille, removed orange reflectors, painted rear reflector, gutted pre-cats, optimized SVT LIM, 19lb injectors, resonator removed cant afford an svt but lookin for 1 in nc