I had a question about the super 44's i was going to put in 2/ 1/2 tubing for the exhaust, from the manifolds and put super 44 mufflers no cats and 3 1/2 inch tips. Would i be lossing a lot of torque and should i leave one cat in or take both out? The specs on the truck are in my sig.

 

install new hi flow cats there cheap and aalso will keep your truck up to standarts and running whell

 

either cuts out all cats or put in hi-flows, keep your piping down to 2.25" for backpressure and with true duals on the super44s you will see no power loss at all, and the sound will be incredible.