Danielf
New member
I did a search and didn't see anything or didn't see what I was looking for anyway but I have a question about the 4.0L and how it reacts to muffler swaps or catbacks. My last Toyota was an 04 with the 3.6 and the best mod to do was a dynomax super turbo muffler with stock piping. A tad deeper sound the stock but you wouldn't know it was aftermarket. It really pepped up the truck and if you know the 3.6 in the tacoma, you know it's a pig. It really made it accelerate smoother and with less effort. Has anyone used one on a 4.0L 4runner or tacoma? My 5th gen must not have come with sound insulation cause you can hear a bumble bee outside with my windows up and the radio on so I'm not looking for any drone at ANY rpm.