Super stock competition springs

[mAdMoPaR]

Do I have to use them in matching pairs(right and left)? Or can I use 2 rights or 2 lefts? springs in question are P3690455 and  P3690454. Also plan on using arengineering adjustable hangers.

[HPP]

Sure, you can mix and match them but it may impact their performance. They are designed in pairs per application, so you will be increasing or decreasing the leaf count on one side or the other.