just wondering out of all the chips out there for the B5 S4, which one offers the highest amout of boost? currently i spike at 15 and settles around 12-13 by redline, and i would like something that boosts and holds higher.

 

That's about what they all do.

The K03's can't really hold more boost, there kind of maxed out at 15psi.

So the question is how long do you want the K03's to last? You can remove the N75 & put in
a manual boost controller set higher. Leave the N75 plugged in so you don't get the CEL..

If you want more HP, do down pipes, cat back, get some good DV's & make sure there are no
leaks & all your maintaince is up.

 

any exhaust work on the s4's helps quite a bit, even a cat back if you dont' already have it

 

unitronic with piggie pipes overboosts to 22 psi.

 

GIAC X chip is around 22-23 spike settles at 21

 

X chip with piggies MBC and a TCD spikes to around 21/22 holds never falls past 15lbs...stock ko3's

 

sorry whats a TCD?

 

Throttle cut defenser, basically a way of fooling the electronic throttle into letting you boost and hold it.

 

devil you are talking 22 psi with your hybrids right and giac x? my giac x spikes at 16 sometimes 17 and holds 15..(stock k03)

 

i'm a big fan of my new mtm chip!! amazing power gains