blitz bov can only hold 1.2 bar??? 18 psi

[moogle]

I am going to buy a blitz bov dual from someone but I heard it can only hold 18 psi. I am going 21 psi all the way and men... I don't know.

I want to change bov bcz stock can only hold so much boost.

[moogle]

someone help plz.

[CarPhoto.net]

buy the harder spring.

works great