is, I saw lots of variation in stock fprs. It is a piece of cake to adjust the aeromotive and once it is set, you never have to touch it. The aeromotive was like $40 more than stock plus the cost of the plumbing. I think it is well worth it. Considering how much people spend on aftermarket chips and then don't know if the FPR is providing the correct fuel flow, seems like a no brainer to me.