2WD4RUNNER
New member
Well, got my new exhaust manifold on this afternoon and wow, what a difference in idle and take off noise.However..my question is with the Magnaflow muffler I also had welded up today.Have any of you had any "drone" problems with yours? Could it be the stock exhaust pipe in conjuntion with the muffler making it loud in the cab?This thing is almost unbearable with any amount of throttle past 1/4 the way down.