Alli Frieson

has any body done exhaust on there equinox ? i deleted my resonator added a carven type r in its place then straight pipe to a y out the rear. it had so much drone in the cab i couldn't drive it, so i went back to the shop and had them replace the muffler with a larger resonator off a truck. i still have drone, is it because of the y connection going out the back that is causing this?????????