Originally Posted by andrey_gta
Look up user Pushkin, he had a dyno of his injen. Some gains up top
If you are concerned, I think you can modify the Injen heat sheild to be more closed or have more air funneled to it with a flexible hose from the lower bumper grilles
Myself, I sourced a used eurobox from sweeden for a price around 250 shipped plus the cost of Afe Dry euro filter. If you are interested in the source, look up my recent posts in the "No 128i love thread"
And how was the car dynoed, open hood, and fans blowing? Yes you might see a slight performance increase since you will be getting plenty of cool air into the engine bay, sort of like if you where driving at high speeds. Now run the car for a while on a hot day and try to take off at the light and watch how sluggishly the car will run with the CAI.
You can detect right away those that are going to be shaky, and that will fall behind and those that are very hungry, and that hunger you will have to develop. You gotta create a goal for yourself whatever that may be, a short term goal and a long term goal and you gotta go after that. And if you donít see it, and if you donít believe it, who else will?