Will this Manual Boost Controller (MBC) work for an S4 (N75 parallel) application?

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Apr 20, 2005 | 12:45 PM

bnl107

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Will this Manual Boost Controller (MBC) work for an S4 (N75 parallel) application?

<center><img src="http://www.addictiveperformance.com/catalog/images/hallman-prorx_large.jpg"></center><p>Hallman RX Pro MBC. I have an oppertunity to pick one of these up at a pretty good price. Will it work for my application? I have the GIAC X-chip in my 2000 S4 (A-Box), and would just like to clip boost spikes. I know there are cheaper options out there (Piggie MBC, JoeP, etc), but I can get this one at a price that isn't too much higher than those. I like the fact that Hallman says it is possible to adjust the boost in 1/2lb incriments (I think I read a few posts that a 1/2 turn on the other style MBCs could sometimes result in going from 17-21 lbs of boost). The ceramic ball seems like a good advantage as well.

Any advice, ideas, or opinions on these for me? Like I said, the price factor is not really an issue, I'm just wondering about compatibilty, performance, and ease of installation. Thanks in advance.

Apr 20, 2005 | 01:16 PM

VonK :: Retired

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An MBC is an MBC is an MBC .... All of the ones you mentioned work on the same principle. --->

You can pick up different springs from your local hardware store. Softer spring = more revs per x psi increase. The ones pictured should be fine.

Apr 20, 2005 | 01:20 PM

bnl107

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I asked because I noticed that VAST Performance sells a "Parallel" and "Standalone" version...(m)

...If they are all the same, what is the difference in those 2 versions (other than $5)? Would the Hallman RX Pro MBC be able to work in both types of applications, or only one? Thanks again for the help.