JY PERFORMANCE 2.25" T304 Stainless Steel Exhaust Pipe Kit, 8‑Piece Mandrel‑Bent, 16‑Gauge

This universal 8-piece exhaust pipe kit from JY PERFORMANCE supplies mandrel-bent T304 stainless tubing sized at 2.25 inches (2 1/4" outside diameter) for fabricators, custom shops, and do-it-yourself installers who need durable, slip-fit connections. The kit includes straight runs, common bend angles and U-bends, all with expanded ends to simplify slip-fit assembly and welding. Construction uses 16-gauge T304 stainless for corrosion resistance and consistent wall strength across all sections.

What pieces are included and what are their dimensions?

The kit contains two long straight pipes, two 90° bends, two 45° bends, and two 180° U-bends. Each tube is mandrel-bent so the internal diameter remains uniform through curves, which helps preserve flow and fitment. See included product photos for exact lengths and individual part shapes.

• 2 × 47.3" straight tubes for primary runs or extended sections
• 2 × 90° mandrel bends for sharp routing changes
• 2 × 45° mandrel bends for gradual direction shifts
• 2 × 180° U-bends for return runs or compact routing

How does mandrel bending and T304 material benefit my project?

Mandrel bending maintains a consistent inner diameter through curves, reducing turbulence and maintaining exhaust flow characteristics. T304 stainless provides superior rust resistance and high-temperature strength compared with mild steel, making it a popular choice for long-lasting custom systems. The 16-gauge wall thickness balances durability and ease of cutting or welding.

• Consistent internal diameter for smoother exhaust flow
• T304 stainless resists corrosion and heat-related scaling
• 16-gauge wall for structural strength without excessive weight
• Expanded slip-fit ends speed up test-fits and tack welding

Will these pipes fit my vehicle and how do I install them?

The kit is universal: 2.25" OD tubing is commonly used on many aftermarket and custom exhausts. Because the ends are slightly expanded (female), tubes slip together for alignment before tack-welding or clamping. Final fit depends on vehicle clearances and hanger locations, so mock-up and trimming are typically required.

• Universal 2.25" OD sizing works for many aftermarket setups
• Slip-fit expanded ends simplify alignment and tack welding
• Trim and rotate bends to match hangers and chassis clearances
• Recommended to tack in place, then perform full welds for durability

What should I expect regarding durability and maintenance?

T304 stainless offers long service life in exhaust applications, resisting rust and pitting that shorten the life of lesser alloys. Mandrel bends reduce stress concentrations and preserve wall thickness through curves, contributing to predictable longevity. Routine inspection of welds and hangers will help prevent fatigue-related failures.

• T304 alloy reduces corrosion compared with aluminized or mild steel
• Mandrel bends maintain wall integrity through bends and bends transitions
• Proper welding and hangar support minimizes vibration wear
• Periodic checks on welds and clamps extend service life

Who is this for: This JY PERFORMANCE kit is designed for fabricators, muffler shops, hot-rod builders and competent DIYers who need a versatile selection of mandrel-bent 2.25" stainless tubing to create or repair exhaust systems. If you want corrosion-resistant tubing with slip-fit ends for faster mock-ups and dependable mandrel bends for consistent flow, this 8-piece set supplies the foundational components for custom routing and professional-looking installations.