2007 s60r

Hi all, first off, i want to thank swedespeed.com for all the help I've gotten to even get this R starting again, this car has been one of my dream cars to own for years and just wanted to thank this awesome community for all that they have done to help. TL;DR at the bottom. So here's a...

I just got a 2007 Volvo s60r and of course for the time being I really want to straight pipe it for fun, my buddy told me that he read somewhere that if I was to straight pipe my s60r it’s best I get it tuned, hopefully this isn’t a air-headed question, my first Volvo... want to know if i should...