Eddy G to be honest is is louder then stock exhaust which can be expected. But it’s not really all that loud. When you floor it you’ll definitely hear it but once I’m cruising down the highway it’s not loud at all. You can hear it but its rather quiet compared to my diesel.
Grayson Hardy to be very honest with you I cannot say, I did a tune, cold air and exhaust all within a short time period so I couldn’t tell you if it did.