Hey you guys should check this product out. I do customer service for the company. They gave me one for free. I havent got a chance to hook it up in my ride because its still in the shop. My friend put one on his maxima and he told me he feels a difference. He gets better throttle response. Well I get my car today so im gonna try it out see what it does. I'll let you guys know. Oh here is a link.http://www.tornadofuelsaver.com