Frequently Asked Questions About International 9300/9370 Elbows, Piping & Comp.

What material are these exhaust elbows made from, and how long can I expect them to last?

Most exhaust elbows for International 9300/9370 trucks are manufactured from either aluminized steel or 304/409 stainless steel. Aluminized steel elbows typically last 3-5 years under normal conditions, while stainless steel options can last 7-10 years or more. The lifespan depends heavily on your operating conditions - trucks running in coastal areas or regions using road salt will experience faster corrosion. For maximum durability, we recommend 304 stainless steel, especially if you're running high-mileage routes.

Will these parts fit my specific International 9300 or 9370 model year?

International 9300 models from 1987-2004 and 9370 models from 2002-2007 share many exhaust components, but there are important variations. The most critical factor is your engine type - Caterpillar C12/C13, Cummins ISX, or Detroit Series 60 engines each require specific elbow angles and connection sizes. Always verify your engine model and check if you have a standard or extended hood configuration, as this affects pipe length requirements. When ordering, have your VIN ready to ensure exact fitment.

Can I install these exhaust components myself, or do I need special tools?

Basic exhaust elbow replacement can be done with standard tools including wrenches, a reciprocating saw for removing old components, and exhaust clamps. However, you'll need proper jack stands or a lift to safely access underneath components. Most installations take 2-4 hours depending on rust and accessibility. Common challenges include seized clamps and alignment issues with multiple-piece systems. Having penetrating oil, new gaskets, and proper clamps on hand will make the job smoother. Professional installation is recommended if you're replacing the entire exhaust system.

What's the difference between mitered, mandrel-bent, and standard elbows?

Standard elbows are press-formed and most economical but can create slight flow restrictions at bends. Mandrel-bent elbows maintain consistent diameter through the bend, improving exhaust flow by 10-15% and reducing back pressure - ideal for performance applications. Mitered elbows are cut and welded at angles, offering precise fitment in tight spaces but with welded seams that may be prone to cracking under extreme heat cycles. For stock replacements, standard elbows work fine. For modified engines or performance gains, choose mandrel-bent options.

Do chrome exhaust elbows require special maintenance, and are they worth the extra cost?

Chrome-plated exhaust components cost 40-60% more than aluminized steel but offer superior appearance and corrosion resistance. They require regular cleaning with chrome polish to prevent pitting and discoloration from exhaust heat. Expect chrome to blue or yellow near the turbo outlet due to extreme temperatures - this is normal and doesn't affect function. For show trucks or owner-operators wanting a professional appearance, chrome is worthwhile. For fleet vehicles or those prioritizing function over form, aluminized or stainless steel provides better value.