Yeah, the Megan Manifolds are on the parts to replace list. I consider them ebay. I thought about getting coilovers at first, but I already had lowering springs so I figured I would give the AGX a shot. I will probably pull them off to put on my NA 2+0 daily driver or to sell to my brother for his Z when he has the money and I will do the coilovers for myself then :). I am going to be picking up the 2.5 inch piping kit as well, I just didn't have it listed because I do not have it yet. Ill be taking it to Ash Spec or Z1 for tuning since I am just about in the middle of both of them, I am leaning towards Ash Spec for tuning though. I am also upgrading the fuel rails as well. I am trying to do it as high quality of a build as possible, so I am always open to suggestions.