Frequently Asked Questions About Peterbilt 359 Chrome Stacks & Tops
What's the difference between straight pipes and curved stacks for my 359, and which style is better?
Straight stacks provide a classic, traditional look and are typically easier to install with fewer clearance issues. Curved or mitered stacks offer a more aggressive appearance and can help direct exhaust away from your trailer. The choice depends on your personal preference and setup - straight stacks work well for most applications, while curved stacks are popular for heavy haulers who need exhaust directed away from low-hanging equipment. Both styles are available in 5-inch and 6-inch diameters.
Will these chrome stacks fit my specific year Peterbilt 359, and what about 379 compatibility?
Our chrome stacks are designed to fit all Peterbilt 359 models from 1967 to 1987. While the 359 and 379 share similar designs, the frame rails and exhaust routing can differ. Most universal stacks will work on both models, but bracket mounting locations may vary. For 379 models (1987-2007), you may need different mounting brackets or slight modifications. Always verify your exact model year and current exhaust configuration before ordering, or contact us with your OEM for specific compatibility confirmation.
What gauge steel should I look for, and how long will the chrome finish last?
Quality stacks should be made from 16-gauge or thicker stainless steel for durability. Our premium options use 304 stainless steel with triple-chrome plating that resists rust and maintains shine for 5-7 years with proper care. Lower-cost options may use 18-gauge steel with standard chrome that typically lasts 2-3 years. For maximum longevity, look for stacks with welded (not crimped) seams and reinforced mounting points that won't crack under vibration.
Do I need special tools or professional installation for chrome stacks?
Basic installation requires common hand tools including wrenches, a drill with metal bits, and potentially a reciprocating saw for trimming. Most drivers can complete installation in 2-4 hours. You'll need to ensure proper support brackets are installed on your frame rails and may need to modify existing exhaust piping. Professional installation typically costs $200-400 but ensures proper alignment and secure mounting. Critical factors include maintaining proper clearance from cab and sleeper, and ensuring brackets can handle the weight (stacks typically weigh 15-30 pounds each).
What stack tops provide the best performance versus appearance?
Straight-cut tops offer maximum exhaust flow and the classic trucker look but provide no weather protection. Curved or turnout tops direct exhaust away from your truck and reduce rain entry by about 70% but can slightly restrict flow. Miter-cut tops balance appearance and function with moderate weather protection. Bull hauler tops with internal baffles significantly reduce rain entry but may increase back pressure. For best results, match your top style to your driving conditions - open tops for dry climates or covered parking, curved tops for all-weather operation.
