Upgrade your sand rail with our Polished Billet Breather Tubes, designed to combine function and form seamlessly. These high-quality breather tubes are the perfect finishing touch for your Porsche repair projects and EMPI enhancements, ensuring optimal performance while adding a sleek aesthetic to your build. Function and form. Finish off your sand rail with these Polished Billet Breather Tubes and chrome shielded covers. Fittings are for 1/2" I.D. Hose.