Frequently Asked Questions About Peterbilt 359 Exhaust Kits

What exhaust pipe sizes and configurations are available for the Peterbilt 359?

Our Peterbilt 359 exhaust kits come in standard 5-inch and 6-inch diameter options. Most kits feature straight pipes, curved stacks, or miter-cut styles. The 5-inch systems are typically used for stock engines, while 6-inch systems are recommended for modified or high-performance engines. Stack heights range from 36 inches to 96 inches, with 60-inch and 72-inch being the most popular for maintaining proper clearance while achieving that classic long-hood look.

Will these exhaust kits fit my specific year Peterbilt 359?

Our exhaust kits are designed to fit Peterbilt 359 models from 1967 through 1987. The mounting brackets and hangers are compatible with both early models (1967-1979) and later models (1980-1987). However, extended hood models and trucks with custom frame modifications may require additional brackets or adjustments. We recommend checking your frame rail spacing and existing exhaust mounting points before ordering.

What tools and skills are needed to install these exhaust kits?

Installation typically requires basic hand tools including wrenches, sockets, and a reciprocating saw for removing old exhaust components. Most installations take 3-4 hours for experienced mechanics. Key challenges include aligning the stacks properly, ensuring adequate frame clearance, and achieving the correct angle for water drainage. Professional installation is recommended if you're not comfortable with heavy lifting or welding, as some applications may require minor bracket modifications.

Are these exhaust kits made from stainless steel or chrome-plated steel?

We offer both options. Our chrome-plated steel kits feature 16-gauge aluminized steel with a mirror-finish chrome plating that provides excellent appearance at a lower cost. Our stainless steel options use 304-grade stainless with either a polished or brushed finish. Stainless steel kits typically last 2-3 times longer than chrome in harsh weather conditions and won't rust if the finish gets scratched, making them ideal for trucks operating in salt-belt states.

Do these exhaust kits meet noise regulations and emissions requirements?

Our straight-pipe exhaust kits are designed for off-road and show truck applications and may exceed noise limits in some jurisdictions. For highway use, we recommend adding mufflers or resonators to meet local sound ordinances, which typically require exhaust noise below 90-95 decibels. These kits do not include catalytic converters or diesel particulate filters, so they're not compliant with current EPA emissions standards for on-highway use. Always check your local and state regulations before installation.