Changing the muffler will make the biggest impact to the exhaust note on a vehicle. Since you have installed a straight pipe glass pack muffler, which is one of the louder options but not necessarily the most deep and throaty sounding option, an exhaust tip won't make much difference in my opinion. With that said if anything is going to make a difference it would be a resonator tip such as # PM-5104. It is a good investment either way since it is stainless steel and resists corrosion naturally... view full answer...