SLP pipe and can on the wifes 07 dragaon.
You don't really get much in the way of HP (3 - 5), but you can lose a little weight and change the sound. I think it gives it a deeper, richer tone.
As Rick said, you don't need any re-mapping. It is litterally a plug and play operation.
Depending on...
well after 7 years it's time to move on.
I see some familiar names running around all ready.
My area of information is the snowy range.
If you have any questions or need info, drop me a line.
I know the area "pretty good":d