GMG Sports Exhaust help!

[74USCarrera]

A buddy of mine got his hands on a GMG Sports Exhaust, when he a bunch of parts from a race shop. It says on the invoice that it is a sports exhaust for the Cayman 987.1

I have a 2005 Boxster S and am tired of the anemic sounding exhaust. So, I figured I would put this on and so researched on web and saw the exhaust is for 2006-2008 987.1

Question is: What is different about the 2005 and 2006 cars that would mean this exhaust would fit one and not the other. I thought they were essentially the same? Also, is there a reason it would fit a Cayman and not a Boxster? Again, I thought the engines.exhaust systems etc were the same.

Any help greatly appreciated, as was thinking of installing tomorrow and now second guessing myself and trying to save the trouble, if someone on here knows why it would not work?

Thanks for any and all suggestions/advice.

Nathan

[Sil40sK]

The 987 Boxster was released as a MY05. The Cayman was a MY06. It should fit just fine.