I would not recommend ECS Tuning.
I ordered 5 bottles of Redline 5w40 and they sent me Pentosin 5w40 instead. I probably won't order anything from them again. Not for the mistake, becuase crap happens and I understand that. It was the service I received. My first attempt at calling they transfered me around and then hung up on me. So I call back and the guy on the phone kept telling me how they ship thousands or orders each day, how big of a company they are, and how mistakes happen. Then proceeded to question me around why I did not want/like the Pentosin..........Because it was not what I F**king ordered damn it! Been ordering my oil online for 8+ years now and never had any problems with the other vendors I have ordered from. I am just going to go back to giving my business to one of the other companies I trust to get my order right, get it to me on time, and have good customer service.