SRI
CAI
Altered OEM Airbox
Other (specify)

...SRI? ...CAI? ...Altered OEM Airbox??? Or something different?

both on my sp23 and my 2010 XT Forester I have CAI's (AEM and Hyperflow)...both cars have increased power and improved fuel economy with lower intake temperatures.for cai's
I have a Hyperflow SRI
CAI FTW!!! I used to have a SRI but I have noticed a bigger gain from my CAI.

I have a CES SRI with K&N pod!

missing an option dan...
"i want to vote but i dont have any of these cause my car is stock"

Well everyone knows mine is a modified OEM Box![]()

2011 Subaru WRX Premium Sedan | 5 MTX | Satin White Pearl | T35 Titanium Tint |
PostmanDan's Mazspace
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CP-E CAI *modified* painted matte black with MPS logo in red. Completed with a K&N hi-flow pod filter and weatherproof splash guard. Intake air is 1 degree above ambient temp.

CPE CAI - Goes like a rocket!