TrackandTuner.com just finished a full CSL carbon fiber airbox installation together with a decat and Supersprint race lightweight race exhaust on a BMW M3 e46 convertible, all available by contacting us.
Our main focus in this article is the supreme CSL carbon airbox. The BMW M3 CSL is a true icon and probably because of the great induction sound from the carbon fiber airbox. The CSL has 360HP instead of 343HP like the “normal” M3 e46. Our customer wanted the sound and performance on his gorgeous M3 e46 convertible. That’s why we have installed a replica CSL airbox however this carbon airbox has a bigger air intake therefore letting the engine breathe better. Installation isn’t straight forward and requires some modification for this SMG version. However the airbox is all fitted perfectly.