4in x .065 Tubing 4 Ft

The Stainless Works 4 inch x 0.065 wall tubing, 4 feet long (SKU SWO4SS-4, MPN 4SS-4) is a premium stainless steel exhaust pipe section designed for custom exhaust system fabrication and high-performance automotive builds. This straight tubing serves as a foundational component for welding together custom exhaust systems, headers, and performance exhaust configurations where precise diameter and wall thickness are critical to system integrity and flow characteristics.

The 4-inch diameter is the standard size for mid-sized engine platforms and high-output V8 applications, offering excellent balance between flow capacity and packaging constraints. The 0.065-inch wall thickness provides structural rigidity during welding and thermal cycling while remaining light enough for performance applications where weight matters. At 48 inches in length, this single section accommodates complete mid-pipe runs, Y-pipe fabrication, or segmented system construction with minimal joint requirements. Stainless steel construction ensures resistance to exhaust heat corrosion and road salt, extending service life compared to mild steel alternatives that require coating or regular maintenance.

This tubing is engineered for fabricators, performance shops, and experienced builders creating custom exhaust systems for street performance, off-road vehicles, drag racing, and specialty automotive projects. Whether building a complete exhaust upgrade, testing exhaust routing before final system design, or fabricating headers and collectors, the straight section accommodates diverse welding configurations. The natural stainless finish retains a clean aesthetic appearance inside engine bays while the material's inherent properties eliminate concerns about rust-through that plague carbon steel tubing in high-heat environments.