I got the kinetix high flow.

 

Why would you suggest his getting the MREV2 when he has an '04 coupe with MT? That's a high $$ mod he doesn't need! Motordynes MREV2 was to correct the design flaw in the '05+ RevUp engines, which he doesn't have!
Gary

 

Oh jeez my bad, sorry I almost costed him his life... Must have missed that part.

 

Haha no dont worry i did my research. for non rev up cars like myself the combination of mrev2 and a spacer will only give me around 2hp more than the spacer would by itself. not worth $500+ imho.

 

Just put on the 1/2 inch MD plenum spacer and z-tube with the upgraded k&n filter. not much difference in power id have to say. idk maybe i was just looking forward to it being like a supercharger or something lol my next thing is probably going to be lightweight underdrive pulleys and belt. then dual exhaust with HFC.
anything else NA i can do to this car besides that?
was thinking about doing the 4.08 gears after all that was done if i didnt notice anything significant.

 

Tons of threads with people asking the same question... Search more on those pulleys too.

 

Its hard to squeeze lots of power on the already powerful G, without Forced Induction that is...Search around....

 

People have covered mostly everything. I just wanted to add:

I've had lightweight underdriven pulleys on my car for around 90,000 miles. Never caused a problem. I would recommend them - just make sure they are UNDERDRIVEN pulleys - that is where most of your gains are from. The lightweight pulleys in and of themselves add negligible power (they just make it rev a little easier so you can easily rev match and what not).