DNA MOTORING ZTL-PP-25-90-RAW 90 Degree Bend Tube DIY

DNA MOTORING ZTL-PP-25-90-RAW is a mandrel-bent 90° mild-steel exhaust elbow with a 2.5" outside diameter built for DIY custom exhaust fabrication.

This raw-finish 90-degree tube is designed for hobbyists and professional fabricators who need a reliable, slip-fit elbow when routing or extending exhaust systems. Constructed from 18-gauge mild steel with computerized mandrel bends, the pipe keeps internal diameter consistent through the bend for smoother gas flow and easier welding or clamping. The universal fitment and one flared opening simplify alignment and connection to other 2.5" components, while the natural finish lets you treat, paint, or weld without restrictive coatings.

How does the 90° bend improve custom exhaust routing?

The precision mandrel bend preserves internal diameter through the elbow so exhaust flow faces fewer turbulence points than a crushed or crushed-then-bent tube. This makes tight turns easier to execute without creating pinch points or weak weld joints. Use it where an abrupt direction change is required and you want predictable fit-up.

• Mandrel-bent curve maintains consistent internal diameter
• 18-gauge wall balances stiffness with ease of welding
• Slip-fit end allows quick mock-ups and alignment
• Flared opening (2.65" ID) eases clamp or weld connections

Will this 2.5" OD tube work with my vehicle’s exhaust system?

The tube is sold as a universal component; it’s made to mate with other 2.5" OD parts and adapters. Because exhaust layouts vary, measure your system and account for the 2.5" outside diameter and the slightly flared end before buying. Professional installation or a test-fit is recommended for precise systems.

• 2.5" outside diameter for common exhaust setups
• One end flared to approximately 2.65" ID for slip-fit joins
• Universal design suits custom and replacement work
• Recommended to verify clearances and angles prior to installation

What are the material and fabrication features I should know?

Made from mild steel with 18-gauge walls, the pipe offers a combination of formability and strength that’s ideal for cutting, welding, and bending during fabrication. The computerized mandrel process gives consistent bend radius and wall thickness, reducing the chance of stress points and hot spots at the elbow. The raw finish means you can weld or coat it however you prefer.

• High-quality mild steel construction for weldability
• 18-gauge walls for dependable structural support
• Computerized mandrel bending for uniform internal profile
• Natural/raw finish allows custom finishing or direct welding

How easy is this pipe to fit and use in a DIY build?

The slip-fit design is intended for quick mock-ups and straightforward assembly with clamps or welds. The slightly flared end helps slide onto 2.5" pipes and accept common clamps or sleeves. Basic metalworking tools and welding experience will make installation faster and more reliable.

• Slip-fit joint for faster alignment and temporary clamping
• Fits standard 2.5" exhaust components with common adapters
• Ideal for cutting, trimming, and welding on-site
• Professional installation recommended for complex systems

Who is this for: This DNA MOTORING elbow is aimed at car enthusiasts, custom fabricators, muffler shops, and DIY mechanics building or repairing exhaust systems. If you need a durable 90° mandrel-bent elbow with a common 2.5" diameter that’s easy to fit and finish, this part is a practical choice. Always confirm measurements and fitment for your application, and consult a professional for safety-critical exhaust work.