Hi, new so I apologize cause I'm sure this has been discussed throughly. I've done a little searching on here but still have a few questions. Our 05 armada has a cracked exhaust manifold on the drivers side. I want to put headers on it along with bpipes. I'm looking at stillen, jba, and maybe dt? Any better than the other? Should you have to retorque them often? And what bpipes? Cajun or stillen? And should I do a cat back with it or run duals straight back off the bpipes? We have a magnaflow on there now. And it sounds like I need to buy an uprev also?