ButlerR32

I'm looking to get the scoob Re mapped in the next couple of months. i am new to Subaru and the whole re map ideaS i am going to get a cat back exhaust and a K&N panel filter. what kind of figures am I going to expect?

Hi I have been looking aswel Miltek is a bit steep. im mew to subarus this is my first one. i am currently looking at a custom made one from Elite Custom Exhausts in AYR Scotland the guy has good workmanship and wants £560 for a cat back upgrading from 3" pipes to 3.5" pipes.