I was also just now thinking that it could be a problem with your O2 sensor, MAF sensor, and or vaccum lines. I had low idle and rough running when I had a vaccum leak between my intake and MAF sensor.
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Cold Air Intake
MIZU Aluminum Radiator
Ralco RZ Underdrive Pulley
NGK Wires and Plugs
Hi Flow CAT
MR Muffler
Super Coil
Techna Fit Brake lines
Clear Corner Turn Signal Lens
Projector Head Lights
Evo Fog Lights
Evo Body Kit
Soon ---> 3'' Exhaust 
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