AIRTEC Motorsport Air Box Top with Uprated Filter for Petrol and TDCIOne of the best kits available for the petrol and diesel engines, the AIRTEC Motorsport induction kit looks and sounds great. Utilising your existing air box base, the kit comes supplied with a replacement lid and a choice of either cotton or foam cone air filters to improve air flow. The result is a simple yet effective modification to improve throttle response and induction noise. Please note: This kit will require you to cut your standard air box.