If you don't care for the extra HP and just want to stop the broken bolts issue just go with shorties, they will be the lowest cost, you will feel a little low end torque difference. Install will cost less if you take it to a shop, you wont need a tune and if you are required to do emission testing you wont have to worry about not passing if you go with a good brand like JBA, or AFE. If you go with LT and want to keep the cost down go with JBA I've had them for a while no issues at all, best are ARH but you will pay for it. There are other brands out there that can be good with shorties or Long tubes but one common thing that I've heard is to stay away from BBK they are the ones that have the most complaints of failing.