Dexster818

that makes alot of sense i understand it now. thanks alot and one more question, i dont have a full exhaust i just have a Magnaflow Muffler, Giac X chip that you can put to 5 options but its on stock atm, a Bosch diverter valve , and a intake (the one from autozone) noting fancy just want to know with all of that what i can get out of it

JMS-Four

I saw that. Nice. Did you just get tired of the old one?

JMS-Four

Getting your GIAC to give you 16psi shouldn't be a problem with any of that.

Now, most folks get upgraded diverter valves (Bosch 710N, and you have 2 of them) and an upgraded throttle body boot.

Dexster818

yeah im going to put my gauge first to see where its sitting at then im setting up my Halman pro MBC and set it to 16 psi or so around there i think that's a good pressure. probably max out 17 but thats it ill see what im going to do

rktskicar

Hey jeff. No, just time to try something different. My old car, very sweet, what a fine machine! RootMachine has it now (PNW, Bellingham area). I have been looking for another S4 FI car from Audi for awhile. B6 S4 (no), B7 S4 (no), B8 S4 (yes). So it brings me here. The weird thing is that this thing is supercharged, not turbocharged. It has decent potential as is electronically controlled supercharger (estimate another 50-70 WHP available with only chip.

Bruce

thejulex

I feel that this needs to be spelled out here.

DO NOT just put in MBC without a GIAC/APR or similar chip upgrade since your ECU will go into limp mode the instant you exceed 7psi or so.

The aftermarket chips are modified to allow much higher pressure than what stock ECU does.

With aftermarket ECU you don't need boost controllers since the ECU controls the boost, unless you really want to blow turbos that is, then you're welcome to use one.