2016 corolla SE exhaust for best performance without being too loud

#1
Looking for a exhaust that can provide the best performance. Dont want it loud nor droning or sound like a stupid honda rice.

Just got kn intake, trd rear sway, trd springs. Strut, lug nuts, paint calipers this week.
 
#3
What can I do to compliment the intake sounds a little bit more without sounding like a honda? lol, I was thinking of the header but I assume that will void warranty.
All I do now is revvvvvv
 
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