You might try asking this in the Exhaust area, but to my knowledge, none of the Stillen products produce drone. It's one of their big selling points for exhaust components in my view.
/doesn't own any Stillen pieces, but is a huge geek and read just about this entire forum.
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2009 7AT Touring - Black on black
VentureShield; F1 Tint; Stealth Signals; LED backup + trunk lights; Stillen HFC; MR Works Headlights; VHT tails; GTR Start Button
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