How was the sound and HP gain? What else have you done.

 

My suggestion, keep the PSE and swap out the cats.

 

on a 997.2 if you have the PSE this is what we do
http://www.sharkwerks.com/products.php?pid=193

If you have a 997.1 I'd agree with above.

 

great idea but I already have the sharkwerks bypass and its awesome!

 

You can still change out to any valvetronic system. I have the Cargraphic one and loved it, probably no power gain though. As others have suggested, change out the cats for max power gain.

 

How does the cargraphic compare to stock kev ?

 

That saved about another 10-15 pounds compared to the stock PSEs. Sound-wise, it has a deeper growl when you step on it, o/w it's pretty tamed. there's a slight drone in the 2-3k rpm range which is not that noticeable. What really helped was the center muffler bypass.

 

Yes you can get Cargraphics with Valves. These mufflers have a nice Strong Sound. If you need price PM me, we are the North American Cargraphics Distrubutors

 

PSE sounds great as it is IMO. I wouldn't waste money on exhaust when you already have PSE. Spend it on other mods such as header, plenum, ecu tuning, etc. for more HP gain.