I just installed the k&n filters on mine. Not a huge gain, but still noticeable. The stock filters are about $15 each if you wanna go that route. PM Josh at Stillen for the K&N. I hate to say this but $120 for this car doesn't get you very far. Maybe an oil change and a light lunch. The Cobb tubes can replace the stock intake hose, but I'm not sure if you gain much. Makes it louder too. It kind of depend on how far you want to go.
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[09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R]
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