The Agency Power exhaust system was installed on my 2010 370z roadster, everything lined up well and the install went as expected. The exhaust is on the loud side. If you are looking for a low aggressive sound this is the exhaust system for you. It has a unusual "puffing" sound with the silencers installed, however, they tone down the exhaust quite a bit. I am considering having an 'X' pipe put in just in front of the resonators, I think that would enhance both the sound and performance. Overall I am very pleased with the exhaust. I did not give a a five star rating because of the strange "puffing" sound with the silencers installed especially at idle.