Universel exhaust whistle 'Turbo' - suitable for diameter 56-85mm

Create your own Turbo-Sound with these universal 'Whistlers'. This article will give your exhaust a whistling tone which is quite equal to the sound of a High Performance turbo charged street racer. As of the easy bolt-on installation, these 'Whistlers' can be easily mounted onto almost each exhaust, or exhaust tip. Diameter of 56-85mm