t3racing wrote:Well mine runs without them, they have been capped and filled in so the intake is nice and smooth.

If your bike is not running very well then I doubt its down to the boost bottle not being present

Unless his insulators haven't been plugged?
If someone just took the chambers off and left the holes open it would run like sh!te.

Like you Mark, I would guess they have been blanked and the bike is running rough due to some other issue.