Universal Car Turbo Sound Whistle Exhaust Pipe Oversized Roar Maker For Auto RC
Turbo Sound Whistle Notice Turbo Sound Whistle Specification Whistle Caliber: 18mm (S) / 23mm (M) / 27mm (L) / 31mm (XL). The product is only suitable for straight exhaust pipe, but the bend exhaust pipe can not be installed.