Im not worried about droning as most of the time i idle and with the agressive cam i have in the car i want to be able to hear all of my engine . as far as perfomance goes i dont race it so could care less and trust me there is plenty of passing power . if not thats what n2o is for .o agere with flowmaster performance mufflers but is there one that is pretty also , under my car eveything is chrome. drive shaft suspension etc..