Sound Video – BMW M5 F10 Exhaust Sound by KKS Performance

KKS Performance, a Deutschland based tuner, presents their new BMW M5 F10 valve controlled exhaust system that customers will be able to open and close when ever you want. 110dB when opened stock when closed. The revving-noise was raised from 93db to 108db with open valves. Closed valves mean stock noise levels.

[youtube]http://www.youtube.com/watch?v=vkMxMYJegls&list=UUjtD0-sojrm1GHOl1B7jnzA&index=1&feature=plcp[/youtube]