Apexi exhaust valve controller

[bmg671]

Apexi exhaust valve controller to quiet down the noise
bnib have no use for this anymore was planning to install it but no time.
fits 80mm exhaust... 155 shipped

http://www.frsport.com/Apexi-APEX-i-155-A023-ECV-Exhaust-Control-Valve-Silencer-80mm_p_9083.html