Hallman Pro RX MBC ?

[MixMasterMike28]

I just bought a Hallman Pro Rx boost controller. I was told it would not work because the rx model is only good for low boost applications. Its supposed to come with a heavier spring to swap in. Is anyone using the rx model with the heavier spring??? Will i be able to adjust to 25psi?????

 

[Strm Trpr]

I have this MBC as well.
The MBC comes with the light spring installed and allows up to 5psi over stock in as little as .5psi increments.
The heavier spring, which you should've got in the hardware pack will allow the MBC to handle pretty much what ever you can through at it.

Check out this link, it gives a very thorough description of the entire set-up.

http://www.boostcontroller.com/inde...=5&PHPSESSID=bfad401e8980431e96e59d327085456f