Special Product Notes
After many hours of further research, tuning and testing we have
improved on our hugely popular Stage 1 Performance Software.
Our team was able to make Stage 2 much faster by improving turbo
response across the power-band. This tuning is especially
noticeable in the first two gears, now catapulting the car off the
line. Tuned for a smooth power-band to put down predictable
and even power in all gears and throttle positions. This
smoothness improves the quality of the shifting and the overall
From a standing start (with the traction control fully disengaged) all
it takes is the press of the throttle to the floor to get the tires
spinning. The everyday practicality of a full size sedan with
the fun of a sports car, this is the definition of "Performance Without
With Dinan’s software, your 550i will be capable of achieving
its natural top speed as the governor has been removed. And as always,
Dinan matches the new car warranty coverage for up to 4 years or 50,000
miles, including the possibility of consequential damages. No one
offers better performance or backs it up with such comprehensive
Do I need to
instal the Performance Software stages in order?
No, any stage can be installed at any time if additional required parts
are already installed.
If I upgrade to the next
stage software do I have to pay full price?
No, just the price difference between the stage you currently have and
the stage you are upgrading to.
Will Dinan parts be
covered under my extended/CPO warranty through BMW?
The Dinan warranty matches the new car 4 year / 50,000 mi warranty and
does not cover any extended or CPO warranties. Read the full
warranty here: http://www.dinancars.com/warranty.aspx
MPG with Performance
Software on a turbo car?:
is the beauty of a turbo engine. When the engine is not in
(below about 3K rpm) it is sipping gas like a small non-turbo engine
would. It is only in higher boost levels that more fuel is
all depends on your right foot, if you drive gently the car will use
the same or slightly more gas than stock and if you drive it at wide
open it will use more.
Will the chip hurt my
Yes and no... We work very hard engineering our products to work within
the limits of the engine components. On the other side, nothing is free and we are asking the engine to do more work and that will increase wear. Dinan
backs its software with a BMW factory matching 4 year/ 50,000 mile
warranty. We are as confident about our products as BMW is
Will stock parts hold up
to the added power gained from Performance Software?
Yes, part of our R&D process is scrutinizing every component
for the ability to handle the extra power added to the
system. We must do this because of our BMW factory matching 4
year/ 50,000 mile warranty. We feel as confident about our
products as BMW does about theirs.