The droning is getting progressively worse
I took some family members to visit my grandmother for her 91st bday today. I took a stretch of the freeway with a lot of grades and to be frank, the droning was fuc#%$& terrible on the uphill grades. I was so embarrassed when my mom was asking me what was wrong with my truck and why was it giving her a headache
I'm going to have the exhaust shop move the 12 inch resonator upstream, basically wherever it will fit and install the 18 inch resonator coming out the back. I'm hoping the two together will help but I'm now concerned that those bottle style resonators just may not have enough sound absorption material to make a big enough difference.
Also, although the majority of my low end came back, there is no denying that the 3 inch magnaflow shifted the powerband up by approximately 700-900 rpms, i.e. with my prior mods and stock exhaust, the power really came on just after 2000 rpms or so and now it is much closer to 3000 rpms. I'm hoping the addition of 18 inches more of smaller diameter tubing helps shift the powerband back down a little.
Again, the muffler sounds amazing from the outside but as the muffler has broken in, droning under load is becoming a major issue and I have to spend money I don't have to fix it