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Old 03-03-2009, 01:42 PM   #9
jmatta
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Join Date: Nov 2007
Location: Chicago suburbs
Posts: 1,675
I have an Evo Hi-Flo intake on my '02 Box S. Air box is molded plastic, but the intake pipe was powder coated metal of nice quality. Intake sound is considerably louder with this mod and no check engine lights after three years of use. Problems arise when owners douse the filter with oil and don't properly remove the excess.

I desnorkeled my car first, then did the intake mod and the intake howl is night and day compared to stock. I doubt it does much for HP in itself, but the sound is worth the price of admission.

FWIW, my car also has Fabspeed secondary cat bypass pipes and a sport muffler. Throttle response is far better than stock with little or no hesitation on throttle blips.
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JGM
2002 Boxster S
1973 911 Green FrankenMeanie
PCA DE Instructor circa '95
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