Replace
your factory A4
side mount IC with
a larger front mount.
Using the stock
IC (designed for
10psi) with a chipped
ECU requesting TWICE
the stock boost
raises turbo outlet
(T-out)
to 200°F
over ambient. The
stock IC lacks
both the surface
area
and mass to maintain
a safe intake
air temperature
(IAT). The ECU
cuts power by retarding
timing, reducing
boost, and running
rich to reduce
EGT
or knock, each
time it senses just
high
IAT, DUH.
Anytime
your A4 is in heavy
traffic, stopped
at a light, or under
heavy load, the side
mount IC becomes
an “inter-heater”.
Only after driving
continuously off
boost above 35mph
for 3-7 minutes
will IAT drop low
enough for ignition
timing and performance
to return, DUH.
This
FMIC increases power
with drastically
cooler IAT mostly
at mid to high RPM
where the stock
IC is overwhelmed
by 200°F
over ambient T-out.
Enhanced knock
resistance
yields improved
engine torque from
more ignition advance,
even on pump gas.
Cooler IAT yields
denser A/F charge
which means more
O2 is burned per
engine cycle which
improves the engines
volumetric efficiency,
DUH
