I was unhappy with the roush until I welded the stock resonator back in....quite a bit better now as you have read. I would try to grab someone's resonator on here, or purchase a cheaper resonator (in the past I have used vibrant resonators with good luck) and install it..I have to believe you should be able to do it for quite a bit less than 300....they charged me 25 bucks to weld my resonator back in line.