Hello all. I recently purchased a white roush raptor screw and felt that the exhaust was a little loud for long trips. I purchased the stock resonator online from a Ford dealer for $160 and cut it into the roush exhaust. The installation was simple and only needed a saw, wrench and a half hour. The resonator made a big difference. The exhaust still sounds beefy the resonator just reduces some of the edge and i do not notice any change in power or drivability. FYI, I checked with roush customer service via email and they do not keep the takeoff exhausts. I also asked them if replacing resonator would cause any issues but they chose not to answer that question. Congratulations and enjoy your Roush.