Actually mine does it too! Premium V6 2011 manual ... Has done it from day one, and I'm assuming it is the injectors. Does it tuned, stock , on premium gas, or on low octane gas, and always/only in the upper RPM range, when getting on it. Sometimes I can hear it at cruising speed in [email protected]
2011 "Cyclone" V6 Premium MT82 6sp "Michelle"
Factory 3.31 Ratio - 35% Tint- Bama 93 Hybrid Tune - FRPP Sport Exhaust - BBK Shorty Ceramic Headers- Air Raid CAI- TSW Nurburgring 19X8.5- Sumitomo HTR Z III 245/45-19
, Best Trap speed 103.50 before
, Best Trap speed 103.52 after headers