Now i normally don't write reviews . . . ever, but i have to let the world of yelp know just how good performance muffler really is. I originally had my muffler and resonator cut off at a muffler shop in central phoenix so that way i could fit a new rear bumper and custom exhaust on my E90. After the new bumper was fitted i went back to the other shop and they were gonna charge me $600 dollars! Then a friend from my car club suggested Russ and his shop. So i went to performance muffler and talked to Russ about what i wanted done. He said he could get it done and he even drew a quick sketch of what he would be doing. When he started working on the exhaust he had to change the way he was going to do the custom piping in order to fit the exhaust properly, but before he did it he actually came out and asked me if it was okay to set it up like that, most shops would just do it and tell you after it's all done. Unfortunately he couldn't finish the exhaust in one day, but that was my fault he couldn't finish because i came only an hour before closing. So the next day i came and he finished my exhaust. i was completely blown away at how good the exhaust sounded and i couldn't believe how reasonable his prices were until i payed him. I would recommend him for any exhaust work that needs to be done on your car. I've had the exhaust for a couple weeks now and the sound of my car has never been better, i get compliments on the sound of my exhaust wherever i go nowadays, if i could i'd give performance muffler a 6 out of 5 i would, they are that good.