My car is a Feb build for March 05 delivery, I decided to wait until March because of the s/exhaust as advised by my dealer.
I have been informed today that NO sports exhausts will be available, until at the least Aug 05 because of euro 4 emissions. Apparently the 997 is the first sports car to have level 4 emissions and Porches cannot get the s/exhaust passed to level 4 without further development.
My order will now be completed without the exhaust, what I really don't understand is why Porsche have released pictures and specifications without the correct approval?

Dealer has now advised me to fit the exhaust at a latter date at an extra Pounds250 charge.

One last point, there is no guarantee that the s/exhaust will be available for 2006 build cars so forget changing the delivery date, its just not worth the wait.

Sorry for the bad news, I'm certainly very disappointed.