1PC Universal Sound Simulator Car Turbo Whistle Muffler Exhaust Noise Transformer Exhaust Sound Amplifier Whistle Accessories

Weight: Size S=68g Size M=78g Size L=102g XL=123g Size: 4 Sizes, As Shown (1inch=2.54cm) Material: Aluminum Alloy In General: Size S Is Suitable For Displacement Of 1.0-1.6, And The Diameter Of The Exhaust Pipe Is 32-43 Mm;   Size S Is Suitable For The Displacement Of 1.6-2.0, And The Diameter Of The Exhaust Pipe Is 37-48 Mm;   Size S Size Is Suitable For The Displacement Of 2.0-2.4, And The Diameter Of The Exhaust Pipe Is 44-55 Mm.