Sorry Everett,
When I said "jacked up"....that is my polite term for saying the resonator "f$cked-up" the performance of the truck. Just putting on the magnaflow it seemed like I lost some low-rpm torque but gained high-rpm horsepower. After the resonator, the noise was much quieter and manageable, but the truck lost tons of power especially at the high rpm end. Amazing how such small changes can make such a big difference!
Flowmaster 70 series here I come (and I sure hope 3rd time is a charm!)