source manufacturer car modification sound wave imitation sound device turbine whistle exhaust pipe acoustic generator motorcycle accessories

Under normal circumstances:

Size S is suitable for engines with a displacement of 1.0-1.6 liters.

Size M fits 1.6-2.0 liters of displacement

L size is suitable for engines with a displacement of 2.0-2.4 liters.

XL size is suitable for engines with a displacement of over 2.4 liters.

Specifications: Small, Medium, Large, and Extra Large in 4 models.

?Product packaging: Self-sealing bags, customizable in blister packaging.

The measured length of the product is only the length of the whistle, not including the length of the fixed frame.
About size selection: /Please/Measure the inner diameter of your car's tailpipe first.
Compare the dimensions with the diagram below and see which one fits your car.
On the premise of the installation size being suitable, choose a larger size as much as possible.
Sound similarity: The sound of the turbocharger blow-off valve is usually "sizzle, sizzle". This whistle makes a "hoo, hoo" sound, which is more similar to the whistle we usually play with our mouth. After all, it's a few-dollar imitation device, and technically it can't imitate the same as the original, so it can only be like this.

Non-quality issues of the product itself are not accepted for returns.