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Old 09-28-2009, 08:02 PM   #9 (permalink)
racerxj17
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Join Date: Apr 2009
Location: Socal
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with HFC, the FI has much more drone in the cabin. i do think is sounds better, but, it is louder in the cab on the freeway, with the outside noise level very similar to the stillen.
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2009 PW Sport/Touring/Nav M6
Stillen Gen 3 Intake/CBE/Berk HFC/BC BR Coil over/Phillips 6500k/Hotchkis Sways/Stillen oil cooler/B&M SS
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