A good map will see improved power and response. MPG gains are harder to give as its down to driving styles etc.. Manual cars give a bigger gain on MPG too.. A well looked after 330d will see 2/3mpg gain more on a long run.. but yet again down to yours right foot.. Just make sure you fit a freeflow filter too that will help and the cars tracking is 100%..
There is no point in fitting updated air fillers to these cars as it will be a waste of time and money as the standard air filter has a very large surface area
Pipercross have been running BMWs on there fleet for years and have seen improvements in mpg, We sell a good number of these each year with only positive comments about them, Your right in saying the surface of the filter is large. But the stock paper filter is very restrictive over a free flow filter..
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
BMW Forums : BimmerForums
1.5M posts
270.5K members
Since 2007
A forum community dedicated to BMW owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, M series, motorsports, maintenance, and more!