Got my Flowmaster installed by Meineke in Santa Rosa CA and noticed an improvement in response right away. The sound is nice, but not overly loud (left the resonator in place) and the performance improvement is apparent to me. Cost under $50 to have them put it on and the instillation was done quickly and professionally, I recommend them highly for anyone wanting exhaust work done living in the area. I have nothing to do with them as I live in Wisconsin, but just thought anyone in the area would benifit from the info or a shop doing good work at a reasonable price.