got the hallman pro rx installed yesterday. didnt put the heavier spring in and it only holds 18psi of boost. question is, how do you swap out to the heavier spring? do you unscrew the bottom nipple or is there another trick to it?

thanks for any help!

 

there is a how to go to the section and its int here

 

for the spring swap? i'll look again

 

havent found it. anyone?

 

https://www.evolutionm.net/forums/sh...n+heavy+spring

 

thanks, much appreciated!

 

Any time.