Special software, hardware, and experience beyond the reach of
most home users (and even Dyno shops that don't specialize in BMWs)
has always been required to tune the OBDI ECUs of BMWs. Chip
emulating and burning have been the de facto way of tuning BMWs and
work great... but what if you don't live close to one of the only
handful of facilities setup to tune a BMW ECU? Now there is a
solution... and one that is comprehensive and cost effective at
that! The WAR Chip, developed by Miller Performance. We say that
each War Chip is basically a BMW "dyno tuning shop" in a box.
Included is your "WAR" (write-and-remap) reprogrammable chip, a USB
interface cable, and your Tune Control Module (more on this later).
The rest is simple; download WAR software from the Miller
Performance home page (that now includes instructions and most
start-up maps), and your ready to fine tune your BMW for all the
goodies you have installed to or inside your engine! The 'Tune
Control Module' feature allows you to upload up to 4
different ECU maps into the WAR Chip, and select them from a
switch you can install within reach of the drivers seat. Different
maps for different fuels and conditions are finally available on
your factory ECU.
The W.A.R. Chip is simply one of the most versatile performance
device that can evolve with your car as it changes over time.
No longer will you be stuck with generic off the shelf software,
you'll have the power to customize your tune to suit YOUR specific
vehicle. The W.A.R. Chip is more than just a performance chip:
It is a revolution in performance for your early model BMW
Some of the top reasons to love the W.A.R. Chip:
Tech Note: Must use Windows XP and have Java
Want to hear more? Lets go in depth about the WAR chip.
1. It really is the last chip you need!
The W.A.R. Chip can change as your car changes. No longer are
you stuck with a tune that isn't meant for you specific
application. Instead of buying a suitable performance chip every
time you update the configuration of your car infinitely, you can
modify the tune yourself with the W.A.R. Chip editing software or
download a specific tune from Miller, or another even another WAR
chip user! The W.A.R. Chip gives you flexibility that is
impossible with traditional chips. Add a camshaft or a VAC
Cylinder head: no problem! Simply map your new modifications on the
WAR software and now your ECU is dialed in to get improved
performance and reliability you paid for. Turbocharged? Fit larger
injectors and program for boost! The possibilities are simply great
with this product.
2. Say good-bye to generic software.
With the W.A.R. Chip being infinitely reprogrammable, you can
perfect the tune of your engine and make the most power possible
from the OE ECU. Generic software works, but it is designed for a
wide range of cars. Let’s face it: these older cars vary in
condition and some naturally perform better than others due to age,
wear, and various upgrades.
Generic tunes have to be safe for all consumers and that means that
you are highly likely to have more hidden horsepower!
The W.A.R. Chip editing software allows you to fine tune a supplied
base startup map. Now included in the WAR software is a library of
tunes to upload and start from. So your first trip to the Dyno is
an awesome one, saving time and money.
These tunes are intended to be a safe option for startup- add the
WAR editing software and you can massage the base tune(s) to tailor
fit your engine and configuration! With the W.A.R. Chip, as you
change your car, you can change your tune which allows you to get
the most bang-for-your-buck out of every single performance part
you use. This also means improved reliability, and drivability for
3. It's 4 chips (tunes), in one!
Storing an aggressive ‘track tune’ for use with high octane race
fuel , a ‘street performance’ tune for 91/93 pump fuel and daily
use, or a E85 fuel tune… just for some examples. There are many
combinations you can create! Blended fuel, Street tune, Valet mode
with limited ... the list goes on.
How do you switch the tunes? EASY! With the included in-cockpit
Tune Command Module (TCM) you can switch between the 4 tunes in
real time without a laptop, and without having to shut the car off.
4. No need for aftermarket engine
The W.A.R. Chip provides control and flexibility once designated
to aftermarket stand alone ECU's only. Many people convert to stand
alone systems or use piggy backs for the lack of control they have
with their factory ECU. Others have custom chips “burnt” after dyno
runs from tuners like us at VAC. The best news of all is that the
W.A.R. Chip puts that control and flexibility in the palm of your
hand so you can quickly and easily switch tunes, and reprogram your
ECU to meet your needs whenever necessary.
With the W.A.R. Chip, you have full control over fuel and spark for
all driving conditions, idle, part throttle and wide open throttle.
You can set your idle speeds, rev limits, O2 sensor control and so
much more. The W.A.R. Chip lets you use your stock ECU, saving you
time and money; the instances where a standalone ECU is a must have
are now greatly reduced to only a few situations.
5. Cheaper than ever to tune your ECU!
Each WAR chip now includes a volume of startup maps included in
the WAR for Windows software so you can start driving or tuning
your WAR chip as soon as you install it. All maps have been created
on Millers Mustang Dyno, and tested on running vehicles to ensure
safety. Starting with a base map also saves you time and money on
the Dyno! While these tunes are not intended to be a solution for
immediately driving your car, they can help you start at a much
closer point that having to make a startup map yourself.
Customers are free, and encouraged to upload and email their
modified tunes to the net to help expand the usefulness of the WAR
chip for others. The future of BMW ECU tuning is now about
community and working together.
NOTE: Currently NOT compatible with E34 M5
VAC Technician’s Notes & Tips:
-Miller WAR Chip Windows software is downloaded from their website
so you always have the newest, and most stable version.
Once your war chip is plugged into a Windows computer and your BMWs
ECU, interaction with the War Chip is simple, much like a flash
On some ECU applications, installation software or base maps are
located on the WAR Chip itself, if no internet access is present
this is a good start.
To load tunes on the War chip, you will email Miller Performance
for the unlock code, and simply drag and drop like a flash drive to
the intended folder and your started! Full instructions are
included from their website below.
MAF and PSIK Troubleshooting Guide
Miller Community support forum for the Miller
Smart Fan Manual
Miller Smart Fan Installation Manual
WAR Chip Manuals
WAR Chip Complete Manual
WAR Chip tech support videos
WAR Chip forum (WAR Room located there)
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