In general:
S size is suitable for 1.0-1.6 displacement
M size is suitable for 1.6-2.0 displacement
L size is suitable for 2.0-2.4 displacement
XL size is suitable for displacement above 2.4
Specifications: Small size, medium size, large size, and extra large size 4 models
?Product packaging: ziplock bag packaging, blister packaging can be customized
The measured length of the product is only the length of the whistle, not the length of the fixing frame.
Regarding size selection: /please first/please measure the inner diameter of the exhaust pipe of your car,
Then compare with the size in the picture below to see which one fits your car;
On the premise of proper installation size, try to choose a larger size.
Sound resemblance: The sound from the turbo relief valve is generally "crack, croak". And this whistle sounded "shhhhhhhhhhhh",
We are more inclined to whistle the kind of whistle we play every day. After all, it is a few pieces of sound simulator, technically it is impossible to imitate the same as the one, only that
