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so the best way to go with ECU upgrade, if i have these mods already done to my S4:

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Old 11-15-2008, 08:36 AM
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Default so the best way to go with ECU upgrade, if i have these mods already done to my S4:

I have A-BOX ECU.
1)Bailey Motorsports DV30 Diverter Valves,
2)P&P intake manifold,
3)RS4 intercoolers
4)RS4 Fuel pump,
5)XSPOWER 2x60mm Tru-dual exhaust,
6)Piggie downpipes with relocated O2's
Do i need stage 1 ecu upgrade or something else like stage 2+ ? Any info will be appreciated!

<img src="http://pictureposter.audiworld.com/152812/a_box.jpg" border="0">
Old 11-15-2008, 08:38 AM
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go with GIAC-X
Old 11-15-2008, 08:41 AM
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I would choose a custom tune over any OTS kit. Where are you located?
Old 11-15-2008, 08:42 AM
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in LV(LATVIJA)
Old 11-15-2008, 08:45 AM
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Default Umm, so custom tune is probably out of the question :)

I think APR had a software version for 2+?
Old 11-15-2008, 08:47 AM
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ASP has a file for you =), you can either send us or ASP your ecu we can get you a very nice file
Old 11-15-2008, 08:48 AM
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Default I have an A box ASP chipped ecu that I no longer use for a 6spd $400 shipped

Its the chip for stock turbos, which is stage 1 if your car is otherwise stock, and stage 2 if you have exhaust, 2+ if downpipes, intercoolers, etc. Its a great file, I just went with bigger turbos so I bought an extra ecu.

Let me know nsloan at law.gwu.edu

Buy mine, sell your stock ecu for ~250, only costs $150..
Old 11-15-2008, 08:56 AM
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REVO has a great stg2 software. If you get the sps you can tweak it yourself too.
Old 11-15-2008, 08:59 AM
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i think so
Old 11-15-2008, 09:20 AM
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benefits over APR, ASP ?


Quick Reply: so the best way to go with ECU upgrade, if i have these mods already done to my S4:



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