Stainless steel gives you looks and durability. Aluminum gives you lighter weight.andy said:2 questions:
1> What is difference between SS and aluminum exhaust? Does it sound different? It it just looks, durability?
2> How do you guys get 15+MPG? I get 12-13 no matter what I pull, load, or the way i drive. I do about 10% freeway, 90% street. Are you guys on the freeway a lot?
Higher mileage happens when you stay on highways using cruise at speeds of 55-65mph. Deviating from this lowers mileage.