SKU: BOYOP4065R/L-3
MPN: OP4065R/L-3
The BOYCE Tubing Oval Section 4in x 3ft (part number OP4065R/L-3) is a 36-inch straight steel exhaust tube engineered for custom exhaust systems and performance vehicle builds. Featuring a 4.688-inch width by 2.625-inch height oval cross-section, this natural steel tubing delivers the precise dimensions needed for efficient exhaust flow routing in mid-engine, rear-exit, or side-exit exhaust configurations. At 6.93 lbs, it remains lightweight enough for suspension tuning while offering structural integrity critical to high-temperature exhaust applications.
Oval tubing geometry provides distinct advantages over round exhaust pipes in modern engine bay layouts. The flattened cross-section permits tighter packaging around engine components, transmission housings, and chassis obstacles while maintaining adequate flow area for scavenging efficiency. The 36-inch length accommodates transitions between manifold collectors and resonators, or bridges mid-section components in segmented exhaust builds. Natural steel finish allows for ceramic or high-temperature coating application to achieve desired aesthetics and thermal management—critical for maintaining underhood temperatures in turbocharged and supercharged platforms.
This tubing is specified by fabricators and motorsports enthusiasts building street-legal race cars, custom hot rods, and performance-oriented restoration projects where stock exhaust geometry doesn't match chassis modifications or engine swaps. The OP4065R/L designation indicates this piece is part of BOYCE's established exhaust component catalog, trusted across fabrication shops for consistent wall thickness and weld-ready surface preparation. Builders working with turbo kits, naturally aspirated engine upgrades, and full system redesigns rely on precision tubing like this to avoid mid-project delays and fitment complications.
Oval exhaust tubing represents a critical component class within the broader custom exhaust market. Unlike mandrel-bent rounds, which are finished products, straight oval sections give fabricators full control over bend radius, exit angle, and overall routing—essential when working around custom headers, aftermarket supercharger housings, or modified frame rails. Availability in 36-inch lengths makes this size suitable for intermediate sections that don't require full kit assembly.
Stock this straight oval tube now at TacticalSurplusUSA and accelerate your custom exhaust build timeline.
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