I just noticed that the listed price on their website now says $600 a pair. So, in comparison to the msds headers, they aren't that much cheaper any more. Also, material wise, these are cheaper to manufacture than the msds since no Y-pipe in included. And, no one knows if they will bolt up, or if the gains will be the same on the 2.5L set up. Has anyone givin them a call to question the fitment on our block, or in our cars period? Granted, they are SS, but what grade stainless? I think we need more info, or someone needs to call them before we all get excited about this.