[Biturbos4] Best chip??

Wilson Northrup northrup at crazybug.com
Sun May 6 00:03:43 EDT 2007

Maybe you should dump that K&N filter and prevent premature MAF failure.

GIAC, MTM and APR have good reputations for this... I'm sure there 
are others.

My car has had an APR for a few years now. Other than to say "it 
works as advertised" there's not much to say about it.  I'm not sure what 
you mean by peaky, but if you mean to spike higher - i'd suggest that this 
is not an ideal setup when it comes to longevity.  But then, maybe you 
don't care.

Most of the K03 options deafult to holding boost at 1bar, and 
trail off to something lower as the RPM's go higher.  if you have K04's 
(as i do) that's another story.

Chips for the S4 basically raise your peak boost pressure. I don't think 
there will be any signifigant sound difference between chips.  This is 
probably more a function of exahaust, or any goofy intake that might find 
it's way under your hood.  My car is louder at WOT than not, i expect that 
it's a bit louder now compared to before it was chipped.

Your exhaust system and intake system setup will also have the potenital 
to impact boost spikes as well, and as such one's noted "peakyness" of a 
given chip may or may not translate to your setup.

You could always get an EBC and do you're own tune :)

good luck.

On Sat, 5 May 2007, Jason Cavaliere wrote:

> Hello everyone.
> I think a lot of people here are like me.  I have an 00 S4 with 54k miles.
> I want a very stealthy performer, and have a k&n intake filter and a milltek
> exhaust.  I've prepped the BPVs and the TBB for a future chip.
> The question is...what chip?  I wouldn't mind the 'peakiest' chip.
> How does the chip change the sound??? A little bit more edge...
> Jason
> 00 S4
> 81 911
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> Biturbos4 at www.audifans.com
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