Frequently Asked Questions About International WorkStar Chrome Stacks & Tops

What sizes of chrome stacks are available for my International WorkStar, and how do I know which one fits?

Chrome stacks for International WorkStar trucks typically come in 5-inch, 6-inch, and 7-inch diameters. To determine the right size, measure your existing exhaust pipe's outer diameter where the stack will connect. Most WorkStar models from 2008-2018 use 5-inch exhaust systems, but always verify your specific measurement. Stack heights range from 36 to 72 inches, with 48-inch and 60-inch being the most popular for maintaining proper clearance without exceeding height restrictions.

Will these chrome stacks fit my specific WorkStar model year, and are there any compatibility issues I should know about?

Our chrome stacks are designed to fit International WorkStar models from 2008 through 2018. However, compatibility can vary based on your exhaust configuration. Single exhaust systems require one stack, while dual systems need two. WorkStar models with DPF (Diesel Particulate Filter) systems may require additional adapters or modifications. Pre-2008 models may have different mounting configurations, so please verify your exhaust outlet style before ordering.

How difficult is the installation, and what tools or additional parts will I need?

Installation typically takes 1-2 hours per stack and requires basic hand tools including wrenches, a socket set, and potentially a sawzall if cutting is needed. Most installations are bolt-on using the included clamps and brackets. You may need exhaust sealant, anti-seize compound for the clamps, and possibly flexible exhaust connectors if your current setup has significant movement. Professional installation is recommended if you need to modify exhaust routing or lack experience with exhaust systems.

What's the difference between chrome-plated and stainless steel options, and how long will the chrome finish last?

Chrome-plated stacks feature a mirror-like finish over mild steel and typically maintain their appearance for 2-5 years with regular maintenance. Stainless steel stacks offer superior corrosion resistance and longevity but have a slightly less reflective finish. In harsh winter conditions with road salt exposure, stainless steel is recommended. Both options require regular cleaning with chrome polish to maintain appearance. Avoid stacks under $200 as they often use thin chrome plating that can peel within months.

What stack tops are available, and do they affect exhaust performance or fuel economy?

Common stack top options include curved turnout, miter cut, bull hauler, and straight cut styles. Curved turnout tops direct exhaust away from the cab and are most popular. Miter cuts offer a classic angled appearance. Bull hauler tops include rain caps. While stack tops primarily affect appearance and exhaust direction, curved tops can reduce cab soot accumulation. Any properly sized stack and top combination will not negatively impact performance or fuel economy when matched to your exhaust diameter.