Anyone had their cylinder head ported 7 polished

[chris watton]

Just wondered if it's worth having the head ported and polished at some point:

http://www.powersperformance.co.uk/store/slug/port...

I know that it makes quite a difference to the K-Series 4 pot, but what gains, if any, could be had from this for a S6?

Cheers.

[chris watton]

I was merely curious, that's all.

I was thinking about the 4.3 - as the engine's out and apart anyway. I am assuming the upgrade doesn't include porting and flowing?