Equipped with state of the art PO37 Sprint internal filter, for minimal pressure drop and a significant air flow increase. The innovative internal design allows compliance with current FIA regulations including dust and noise values and at same time optimize performance. The
development and innovation of the internal design make possible a powerful flow delivering great performance and optimization, especially with application to KZ shifter categories, that have maximum power and high revs output. High performance is also obtained with non shifter, single speed engine categories using a 23 mm version. ( OK, OKJ, OKN, OKNJ)
