YOLANDO 3" Mild Steel Exhaust Pipe Kit - 3" OD 8-PC Mandrel-Bent Tubing, Slip-Fit 16-Gauge

This kit supplies a complete set of 3" outside-diameter (OD) mild steel pipes and bends so you can route and join exhaust runs without custom fabrication. Each tube is 16-gauge mild steel and mandrel-bent for smoother airflow and consistent wall strength. Ends are expanded on one side for straightforward slip-fit assembly, making the set useful for DIY projects, repair work, or prototype exhaust layouts.

What parts are included and what are their dimensions?

The kit contains eight precisely formed pieces so you can create a continuous 3" exhaust path with standard angles and a U-bend. Two straight tubes, two 90° bends, two 45° bends, and two 180° U-bends give you flexibility to match many vehicle or shop layouts.

• 2 × straight tubes (47.3" length each)
• 2 × 90° mandrel bends for sharp directional changes
• 2 × 45° mandrel bends for gentler transitions
• 2 × 180° U-bends for routing and return runs
• All pieces: 3" outside diameter, 16-gauge mild steel walls

How does mandrel-bending help performance and fit?

Mandrel bending preserves the pipe’s internal diameter through a bend, limiting kinking and reducing flow restrictions. That creates a more consistent internal passage compared with crush-bent tubing, which helps maintain exhaust flow and makes alignment easier when connecting sections.

• Smoother internal radius reduces turbulence
• Consistent outside diameter for reliable slip-fit joins
• Stronger bend areas resist deformation under heat and flex

How do I install the kit and what additional parts will I need?

Installation is slip-fit friendly: each tube is expanded on one end so sections slide together and can be clamped or welded. For a secure, leak-free system you can clamp the joints for a temporary or removable connection or fully weld them for permanent strength.

• Required: exhaust clamps, hangers, and possibly flange adapters
• Optional: welding equipment and sealant for permanent joins
• Tip: mock up the full route dry-fit before final clamping or welding

Will this kit work for my vehicle or project?

Because it's a universal kit, it suits many custom or replacement exhaust applications where a 3" OD system is appropriate. Check fitment against your vehicle's clearance, hanger locations, and flange interfaces; some cutting, trimming, or adapter pieces may be necessary to match OEM components.

• Best for builds that require a continuous 3" tube diameter
• Good for custom systems, repairs, or prototyping in a shop
• Not vehicle-specific — verify measurements before final installation

Who is this for: This YOLANDO 3" Mild Steel Exhaust Pipe Kit is aimed at DIY mechanics, fabricators, and custom exhaust shops needing a cost-effective set of mandrel-bent 3" tubing. It's useful if you want durable 16-gauge steel components that are simple to trial-fit and either clamp or weld into a finished exhaust run. If you need vehicle-specific flanges or stainless corrosion resistance, plan to add adapters or choose a different material accordingly.