Freightliner FLD SBA Exhaust Parts

Frequently Asked Questions About Freightliner FLD SBA Exhaust Parts

Will these exhaust parts fit my specific Freightliner FLD model year?

Our SBA (Set Back Axle) exhaust parts are designed specifically for Freightliner FLD models from 1989 through 2007. These parts are engineered for FLD112, FLD120, and FLD132 models with set back axle configurations. Before ordering, verify your truck's axle configuration - SBA models have the front axle positioned further back than standard models. If you're unsure about your configuration, check your OEM or contact our support team with your truck's details.

What's the difference between aluminized and chrome exhaust stacks, and which lasts longer?

Aluminized steel exhaust parts feature an aluminum-silicon coating that provides good corrosion resistance at a lower price point, typically lasting 3-5 years depending on conditions. Chrome exhaust stacks offer superior corrosion resistance and aesthetic appeal, usually lasting 5-10 years with proper maintenance. Chrome requires regular polishing to maintain its shine, while aluminized parts develop a matte finish over time. For trucks in harsh weather conditions or coastal areas, chrome is worth the investment.

Do I need special tools or brackets to install these exhaust parts?

Most SBA exhaust installations require basic hand tools including wrenches, sockets, and potentially a reciprocating saw for removing old parts. Our exhaust stacks and pipes typically use standard 5-inch connections with band clamps. Some installations may require new exhaust brackets or hangers, especially if replacing factory parts with aftermarket options. We recommend having exhaust sealant and new clamps on hand. Professional installation typically takes 2-4 hours depending on the complexity.

What exhaust stack heights and styles are available for FLD SBA models?

We offer straight pipes, curved stacks, and miter-cut styles in heights ranging from 48 inches to 96 inches. The most popular configurations are 60-inch and 72-inch straight pipes with either flat-top or miter-cut ends. Curved stacks are available with 45-degree and 90-degree bends. Consider your garage height and local regulations when selecting stack height. Many states require exhaust discharge above the cab roof, making 72-inch stacks the minimum for most FLD applications.

Why is my new exhaust system louder than expected, and how can I reduce drone?

Aftermarket exhaust systems often flow better than factory parts, which can increase volume. If you're experiencing excessive drone or cabin noise, consider adding a resonator or high-flow muffler to your system. Straight pipes without mufflers will always be louder than systems with baffling. Check that all connections are properly sealed - exhaust leaks can significantly increase noise. For the best balance of performance and sound, we recommend our chambered muffler options designed specifically for FLD SBA applications.