Stainless Steel 304/316 Exhaust Flexible Pipe
Solve exhaust system problems: Eliminate cracks from vibration • Accommodate thermal expansion • Allow engine movement • Easy installation for repairs and custom builds.
Why Choose Our Stainless Steel Flex Pipe?
Vibration Absorption
The corrugated design absorbs engine and road vibrations, preventing stress cracks in your exhaust system.
Thermal Expansion
Allows for expansion and contraction during temperature changes (from cold start to operating temperature).
Engine Movement
Accommodates normal engine rocking and torque movement without stressing rigid exhaust components.
Material Comparison: 304 vs 316 Stainless Steel
| Property | 304 Stainless Steel | 316 Stainless Steel |
|---|---|---|
| Corrosion Resistance | Excellent for most automotive applications | Superior, especially in marine/salty environments |
| Temperature Resistance | Up to 1500°F (816°C) | Up to 1600°F (871°C) |
| Cost | More economical | Premium grade (higher molybdenum content) |
| Recommended Use | Standard automotive exhaust systems | Marine, industrial, or coastal area vehicles |
Available Sizes & Specifications
| Inner Diameter | Standard Lengths | Wall Thickness | Part Number | End Type |
|---|---|---|---|---|
| 1.5″ (38mm) | 6″, 12″, 18″, 24″ | 0.8mm | FP-304-1.5 | Plain, Beaded |
| 2″ (51mm) | 6″, 12″, 18″, 24″ | 1.0mm | FP-304-2.0 | Plain, Beaded |
| 2.5″ (63.5mm) | 8″, 16″, 24″, 36″ | 1.2mm | FP-304-2.5 | Plain, Beaded, Flanged |
| 3″ (76.2mm) | 12″, 24″, 36″, 48″ | 1.5mm | FP-304-3.0 | Plain, Beaded, Flanged |
| 3.5″ (88.9mm) | 12″, 24″, 36″, 48″ | 1.5mm | FP-304-3.5 | Beaded, Flanged |
| 4″ (101.6mm) | 18″, 36″, 48″, 60″ | 1.8mm | FP-304-4.0 | Beaded, Flanged |
End Connection Options:
- Plain Ends: For welding directly to existing pipes
- Beaded Ends: For slip-fit connections with clamps
- Flanged Ends: For bolt-on installation with gaskets
- Braided Outer Cover: Optional for extra protection and appearance
Common Applications
- Exhaust System Repairs: Fix cracked or broken exhaust pipes
- Custom Exhaust Builds: Connect headers to downpipes
- Engine Swaps: Accommodate different engine positions
- Marine Exhaust Systems: Resist saltwater corrosion (316 grade)
- Industrial Equipment: High-temperature gas/vapor transport
- Turbo Installations: Connect turbo to downpipe with flexibility
- Motorcycle Exhaust: Space-constrained applications
- Diesel Exhaust Systems: Handle vibration from diesel engines
- Generators & Power Equipment: Isolate vibration
- Heating Systems: Thermal expansion accommodation
- Laboratory Equipment: Chemical-resistant connections
- Custom Hot Rods & Classics: Flexible exhaust routing
Installation Guidelines
Professional Installation Tips:
- Measure Twice: Ensure proper length – too short creates tension, too long sags
- Allow Movement: Install with slight slack for expansion/contraction
- Proper Alignment: Avoid sharp bends – maintain smooth curves
- Secure Connections: Use appropriate clamps or welding methods
- Check Clearance: Ensure adequate space from heat-sensitive component
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