Rear Spoiler?

Which one is better?

Type-R Spoiler or Universal Aluminum Wing Fits (Adjustable)?

I want to get a spoiler to put my car to increase drag and reduce lift during banking and descent. Also, fixed air deflector on the rear of an automobile, designed to keep it on the ground during high speeds.

I'll go to Type-R Spoiler than Aluminum Wing Fits.


Do you think if you put a rear spoiler and the insuricane go up???