K & N Race-Spec Air Filter - GSX-R600/750 SU-7511R QVF Top Front Duct Set At the end of the

At the end of the baffle is a trumpet shaped inner tip that works in harmony with the belled end

it has better flexibility

Anytime you replace the stock exhaust system with an aftermarket racing system it requires changing the fueling

Equipped with a 35 mm "C" section anticorodal bar

K & N Race-Spec Air Filter - GSX-R600/750 SU-7511R QVF Top Front Duct Set At the end of theFewer pleats than standard K&N air filters opens up the intake tract Designed to increase power on modified sportbikes Fuel management modifications may be necessary Made in the U. S. A. for over 50 years Two ply cotton race filter media Purpose built for racing Designed for Closed Course and Competition use