I am about to start working on the car I was thinking of MAC Longtubes,SLP Loudmouth catback, Cold Air, 4:10 gears,3/8" Intake Spacer, how does that sound for now?

 

Thats pretty much the first things that all Mach owners do, I would add a mid-pipe to that list. The ones I don't have on that list will be done in the next year or so...

 

The first thing i did was replace the floormats...

 

if you could i would add an aluminum driveshaft and reduce the rotational mass and you will get a nice feel out of it too.

 

short throw shifter and springs would be good with that equation

 

I've got an 04 Mach that I'm still working on, but I'm thinking that given the list you've got, maybe LCA's? That's just me though...

 

That list is a good start. I would change the CAI to a JLT Ram Air so that the shaker stays functional and I would also add a midpipe to the list. That is pretty much all of your basic bolt ons minus a throttle body. You could also look into a short throw shifter and springs like Sace said.

 

def the mid pipe, let your baby breathe.