Well, i obviously know its a good idea if I have a rev up engine but however I have a 2003 6mt which doesnt have a rev up engine

Do you guys think its even worth it to use the mrev2 + 5/16 spacer combo?
ATM i only have the 5/16 spacers and im debating on buying the mrev2

IMO spend that money on other mods that add more performance. Get a tune if you don't already have one, maybe a suspension, or a higher final drive. The MREV2 will add a little something to your motor, but it's not significant enough to justify the price. Hell, the gains of the MREV2 on your motor aren't even worth the labor.

Any suggestions? i already have a cold air intake and suspension, im running bilstein coilovers with stillen sways atm.
Im kinda leaning towards saving up for the tdx2 exhaust then maybe a osiris tune after..?

Sounds like a plan. Do whatever power mods you want, and do the tune last. Or skip all those other mods and just get a tune, it's that worth it.

If you want more acceleration, you can look into changing out the final drive gear ratio. It will hinder top speed and raise your RPMs a bit, but it will make your car rev up and accelerate faster as well.

Err, sorry to be annoying but can you explain/link me to some info about how I would change out the final drive gear ratio?
Definetely interested in it if it can raise my acceleration

Edit: NVM! search tab was actually successful this time!
http://www.z1auto.com/prodmore.asp?m...ne&prodid=2833
Is this a good one?