Karbonius Carbon Fibre Airbox OEM Style - BMW E46 M3 / Z4M S4 (B7) Cobra subframes are tailored to

Cobra subframes are tailored to fit your original fixing points and have high quality adjustable double lock sides

This ECU remap is for installation at Evolve or at one of our dealers

but do not look for HP gain

OEM Part Number: BMW: 17 11 8 095 293

Cod: 048404 Alternative to 833104

Karbonius Carbon Fibre Airbox OEM Style - BMW E46 M3 / Z4M S4 (B7) Cobra subframes are tailored to2x2 Gloss Only The CSL Airbox is one of the most demanded improvements among BMW M3 E46 enthusiasts. That is both for performance gain, and for the sound it brings to the car. On the other hand, it is a laborious, time consuming and expensive modification. For those who are looking for similar sound to CSL airbox, but do not look for HP gain, we have developed the Karbonius OEM Style S54 airbox. It is a simplified version of CSL airbox, that, apart