STM: STM 370Z STAINLESS STEEL AXLE-BACK EXHAUST / MUFFLER DELETE | STM-370Z-AXLBK
I can personally say that the quality is fantastic on these. That's our car in the pictures which received the first set. I looked at the AAM and wasn't a fan of the clamped on tips. I personally know a few other people who have also installed these with great results.