4 Or 5 Inch ID Flex Tubing - 304 Stainless Steel - 10 or 25 Foot Rolls

Easily Cut To Any Length.

Premium 304 Stainless Steel Construction
Built to last, this flex pipe is manufactured from premium grade 304 stainless steel, the industry standard for superior strength and corrosion resistance. Unlike lower-grade alloys, 304 SS remains bright and clean over time, keeping your exhaust looking professional while standing up to harsh road conditions.

Ultimate Rust Fighter

• Non-magnetic alloy for maximum durability
• Contains 18–20% chromium and 8–10.5% nickel for unmatched corrosion resistance
• Low carbon content (≤0.08%) ensures excellent performance across all operating temperatures
• The ideal choice for fleets and owner-operators who demand long service life in all climates

Performance Benefits

• Absorbs vibration and reduces stress on rigid exhaust components
• Handles thermal expansion to prevent cracks and leaks
• Easy to clamp, weld, or customize for quick repairs or installations
• Provides a reliable seal to protect turbos, mufflers, and stacks

Why Choose 304 Stainless Flex?

• Stays brighter, longer
• Excellent strength in hot and cold conditions
• Resists rust, corrosion, and road chemicals
• The premium choice for heavy-duty trucks

HD Truck Source’s 304 Stainless Steel Flex Pipe is the ultimate rust fighter — engineered to protect your exhaust system, extend service life, and keep your truck on the road.