This product fits the following: Gilera Runner 50 / 50 SP 1999 > 2006 Gilera SKP Gilera Stalker Piaggio 2 STROKE NRG Extreme Air Cooled Piaggio 2 STROKE NRG Extreme LC Piaggio 2 STROKE NRG Mc2 Piaggio 2 STROKE NRG Mc3 Air Cooled Direct fitting foam pad panel filter for the bike listed above, cut to shape from our twin core Ramair Aeriform foam. Ramair twin core foam is unique and like no other on the market. It is impregnated with a polymer retention agent to give maximum dust filtration along with outstanding performance. Optimum filtering characteristics when dry which can be improved upon by applying our specially formulated oil. Perfectly interchangeable with the original O.E. panel filter and they are especially suitable for high-performance engines. Tests carried out by MIRA show many Ramair foam filters to outperform rival manufacturers by up to 40%