AKRAPOVIC L-A10E11-TD Aprilia RSV4 / Tuono V4 (2021+) Track Day Link Pipe (titanium; racing)Track day link pipe for Aprilia RSV4 Tuono V4 by AKRAPOVIC. Designed for use on closed course competition circuits, this lightweight titanium link pipe with resonator lowers the static noise level at 5,500 rpm to 100 dB when installed with the muffler and headers from the "Evolution Line" (carbon) exhaust system. This track day orientated product, which complements the "Evolution Line" (carbon) without compromising power and torque gains, requires