The time and money you spend are a big investment, and we want to help you make the best decision for your driving dreams. Typically, a cat-back exhaust system will increase your car’s horsepower by somewhere between 5 and 50 brake horsepower. This will vary greatly depending on the condition of your exhaust and engine, so you should ask your mechanic if getting a cat-back exhaust is the best way to improve the performance of your car.

Most end up reducing performance and adding weight, or worse yet – adding cost and doing nothing at all. Find out more about this topic by reading our blog on Why Exhaust Drone Silencers Aren’t All They’re Cracked Up To Be. RealTruck is your home for the best products to outfit your build for unforgettable adventures.

In this article, we’ll explain what a catback exhaust system is, what it does, and why it’s different from your run-of-the-mill exhaust systems. There are seemingly endless available upgrades when looking to enhance vehicle performance. It certainly rings true when it comes to your vehicle’s exhaust system. One term that you’ve probably heard if you’re in the market for an aftermarket exhaust upgrades is cat-back exhaust. What exactly does it mean, and how does it change the way your vehicle performs? This 2009 pontiac g6 flex pipe replacement G8 GXP is one of approximately 1,830 examples produced, and it has 16k miles.

To maintain catalyst efficiency, the air–fuel ratio must stay close to stoichiometric and not remain rich or lean for too long. All of Milltek's performance exhaust systems are manufactured from T304L stainless-steel