I understood that, I am just of the old school train of thought. If I don't care for the sound, want to trade the truck in, have any warranty concerns I can simply pull the new exhaust off by removing a few bolts and rehang the OEM Factory exhaust in about an hours time and no extra out of pocket cost other than the cost of a little laundry from dirty clothes.Did not plan on ordering it, my local shop will do 3 inch with magnaflow out each side with tips of my choose for 240$
I agree, 3.5" single would be ideal. But I haven't found anyone selling one yet. A 3" single does not offer a serious improvement over the stock exhaust IMO, so I wouldn't bother. A friend installed a 4" single on a different vehicle and it is loud. But if I could only chose between the 3" single and 4" single, I would go with the 4" single.I've seen many threads stating that 3.5 is the optimal size for these trucks. No experience though, just from what I've read. Many aftermarket exhaust are 4" so I think you'll be safe either way.