Muffler delete on a Civic si 2012 ?

Hello i just bought a civic si 2012 for 3.6k canadian. 200 000 km not bad i thing i am buying a kn intake tomorow for 180 $. And wnat to know if a muffler delete will sound good on my civic and is it worth it ? Because a shop quote me 160$ for the job i can get a nvidia q300 for 400$ is it really worth it or the sound difference is not worth it ? Thanx alot !