Turbosmart Smart Dual Port BOV Black EVO 8 / 9 / X Nissan The nasty firewall flex is

The nasty firewall flex is the source of this performance flaw in Subarus

hard anodizing builds up a hardened layer over the base material to prevent wear

If you are looking for a direct drop in that is compatible with your automatic trans then this is a great choice

This leads to a ton of chances for things to be off

Overall Size: 29

Turbosmart Smart Dual Port BOV Black EVO 8 / 9 / X Nissan The nasty firewall flex isThe Dual Port BOV for the EVO is four valves in one, it is able to be changed from the Supersonic, Megasonic, Plumb Back or Dual Port valves. The valve uses a quick release V Band clamp to hold it to the flange and the valve configuration can be changed on the fly. It is best suited for medium size turbo cars in the range of 200 600hp. There is not another more versatile valve design on the market and is unique to Turbosmart. This is a direct bolt on