Hi again. Many years ago, I was taught that a vehicle (every day driver) will always run its best the way it was designed by the engineers. Anytime you change things, the possibility of different issues is there. For example, (and I do not know if the truck is a single or dual exhaust system from the factory) if you change this vehicle to dual exhaust and remove the mufflers, you first have to be concerned with it needing two catalytic converters. Next, the oxygen sensors need to be adapted. Finally, you are changing back pressure which does affect the performance. Yes, most feel if you open the system, it will get better mileage and more power, but as I mentioned, there are negatives, too. In this case, the possible negatives on a new car (I feel) outweigh any benefits.
Please keep in mind, the emissions warranty on your vehicle will most likely be voided if you alter the exhaust system. If you have a check engine light turn on due to an oxygen sensor issue, catalytic converter, lean or rich fuel mixture the dealer has the right to reject fixing it under warranty.
Let me know if you have other questions. I do not want to discourage you, but at the same time, I do not want to give bad advice. There are performance systems you can purchase, but they are expensive and again could void the warranty. Maybe I am just getting old. Lol If it was an older vehicle that had no warranty and you live in a state that does not require emissions inspections, I would say go for it. Otherwise, in my thirty five years of working on cars, in most every case, the manufacturer's design works best.
Tuesday, October 2nd, 2018 AT 5:12 PM