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International DuraStar Elbows, Piping & Comp.
Frequently Asked Questions About International DuraStar Elbows, Piping & Comp.
What years and models of International DuraStar trucks are these exhaust components compatible with?
Our exhaust elbows and piping components are designed to fit International DuraStar models from 2002 to present, including the 4200, 4300, and 4400 series. However, compatibility can vary based on your specific engine configuration (MaxxForce DT, DT466, or HT570) and whether you have a vertical or horizontal exhaust setup. We recommend checking your truck's VIN or calling our tech support team at 1-888-875-7787 with your model year and engine type to ensure proper fitment.
Are these exhaust components made from aluminized or stainless steel, and which is better for my application?
We carry both aluminized steel and 304/409 stainless steel options. Aluminized steel components typically last 3-5 years and are more budget-friendly, making them ideal for trucks in moderate climates or those with regular replacement schedules. Stainless steel components can last 7-10+ years and resist corrosion better, especially important for trucks operating in areas with road salt or coastal environments. The stainless options cost approximately 40-60% more but often prove more economical long-term for high-mileage operations.
What tools and equipment do I need to install these exhaust components myself?
Installation typically requires basic hand tools including socket wrenches (usually 13mm, 15mm, and 17mm), penetrating oil for rusted bolts, new exhaust clamps (we recommend heavy-duty band clamps), and high-temperature exhaust sealant. You'll also need jack stands or ramps to safely access the underside of your truck. Most installations take 1-2 hours for experienced mechanics. If your old system is severely rusted, add a reciprocating saw to your tool list for removal.
What's the difference between OEM-style and aftermarket performance elbows?
OEM-style elbows maintain factory specifications with standard wall thickness (typically 16-gauge) and original bend angles, ensuring quiet operation and emissions compliance. Performance aftermarket options often feature thicker walls (14-gauge), mandrel bends for better flow, and sometimes larger diameters (4" vs stock 3.5"). While performance elbows can reduce exhaust gas temperatures by 50-100 degrees and improve fuel economy slightly, they may increase exhaust noise and could affect emissions testing in some states.
How can I prevent these exhaust components from rusting prematurely?
Even quality exhaust components need protection in harsh conditions. Apply high-temperature exhaust paint (rated for 1200?F+) before installation, especially on aluminized steel parts. Ensure all connections use proper clamps rather than just slip-fits to prevent moisture intrusion. Regular undercarriage washing during winter months removes corrosive road salt. For maximum longevity, consider applying a ceramic exhaust coating, which adds $75-150 per component but can double the lifespan in severe conditions.