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Improve the performance of your Freightliner FLD engine with a new custom exhaust system from CARiD. Designed to fit into the engine perfectly, each of our FLD custom exhaust systems boost engine efficiency, releasing more horsepower and increasing torque by a considerable amount. Freightliner FLD custom exhaust systems works by increasing exhaust flow and reducing backpressure, which is responsible for the loss of engine power. When the backpressure goes down, the volume of exhaust flow increases, leaving the engine free to efficiently take in the fresh air-fuel mixture it needs to generate power. The results are more horsepower, faster accelerate and greater pulling power. We stock performance exhaust systems for all Freightliner FLD trucks released between 1988 and 2004. There are tons of direct replacement exhaust systems and performance exhaust components to choose from, all manufactured by leading brands such as Borla, MagnaFlow, Flowmaster, Gibson, MBRP, RBP, Zunden , Onki and Weapon-R.

Replacing the entire stock exhaust will give you the greatest overall efficiency. Complete exhaust systems are ideal for this. To improve a particular area between horsepower/torque and sound, go for a pair of headers, catalytic converters, mufflers, exhaust pipes, tips or exhaust kits from any of the listed brands. Your choice will b determined by what you want to achieve. We have tens of each component to choose from. Choose the exhaust system that corresponds to your car’s specifications, as this will determine just how effective the custom exhaust becomes. One other benefit a Freightliner FLD custom exhaust system gives is improved sound. You will enjoy the new exhaust sound from your truck. Where the stock exhaust note may have gotten shrilly with time, a custom exhaust will add a touch of the throaty growl that denotes the power within a truck.

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    Guides & Articles

    • Performance Parts
      Engines have often been compared to air pumps, because the engine that’s most efficient in terms of economy and power is the one that can get air in and out of its cylinders the easiest. That’s why most performance modifications like conical air filters, cold air intake systems, headers, and cat-back exhaust systems are aimed at making the intake and exhaust systems less restrictive. These parts increase the flow of air into the engine and ease the flow of exhaust gas out of the engine. Among these components, headers may be the most difficult to install. In this article, we’ll discuss what headers do, their different types, and how much performance they can add to your car.
    • Performance Parts
      You may be wondering why so many aftermarket performance exhaust system manufacturers are offering dual exhaust systems connected by "H-pipe" or "X-pipe" sections. After all, aren't two separate pipes, or so-called "true duals", the best for performance? The answer is no, but to understand why we have to examine how a typical internal combustion engine works.
    • Performance Parts
      It's an age-old question that many have asked. Will an aftermarket exhaust be worth the expense? While they definitely can be, an important question to ask yourself is do you care more about the deeper sound they’re designed to produce, or the added performance gained from being less restrictive? As car enthusiasts, we’ve become accustomed to associating the sound of a car with its exhaust. After all, doesn’t everyone have a childhood memory or two of a car and the particular sound it made?
    • Performance Parts
      Regardless of whether you're shopping for a simple replacement muffler that delivers original equipment (OE) sound and performance or an upgraded muffler which provides a deeper growl with increased power through freer exhaust flow, you'll see choices between "direct fit" mufflers and "universal" mufflers. In this article, we'll help you understand the differences between these two styles so you can make a more informed purchase.

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