While the Speedway season has been in recess over the winter months, we have been developing what we believe is the ultimate in exhausts for the modified Clubman Engine. We supply this exhaust with the choice of Headers to suit the AKA rules or the (open)rules of dirt speedway. More performance than the conventional style of exhaust. Incredible bottom end and more top. *What a pity they are not legal for asphalt racing.(See product catalogue)