I was going to say that... Read the other thread.
If you really want a whistle noise, get a throttle body spacer, but I wouldn't recommend it for performance, just sound.
yeah that's probably true... and the "whistle" sound some of us refer to with an aftermarket CAI is generally a VERY brief, rather quite "WISP" immediately heard when you touch the pedal... it's the suction of air flying through the larger than stock air intake area... I definitely wouldn't buy a CAI just for the "whistle" but more for the performance and ROAR it delivers... the ROAR I'm referring to is the deeper, bassier tone it delivers when in the higher RMP range, generally around 3,800+.
Current - 2013 Charger R/T Plus - 5.7L Hemi | Heated/Ventilated Seats | Heated/Cooled Cup Holders | 8.9 Inch Touch Screen | Electronic Adjustable Pedals | Full Memory Control Push Button EKF | Debating Exhaust.
Past - 2011 Mustang 3.7, Kona Blue, 6MT - | FRPP Sport Exhaust | Airaid CAI | OEM Black Leather | Boss302 Steering Wheel | Stack Racing Chrome Tower Brace | GrabberPony Custom Shift Knob | Rear Black Out Panel | Auto Headlights | 15% Tint All Around |