Vibrant 13057 T304 SS 90 Deg Mandrel Bend 3.5" OD 4"x12" Leg Lengths 16-Gauge

Vehicle Fitment

• Universal - No vehicle-specific fitment. Suitable for custom exhaust, downpipe, header, dump tube, and intercooler piping fabrication on cars, trucks, and performance vehicles requiring 3.50" O.D. round tubing.

Fitment Notes

• Designed for use with 3.50" O.D. round exhaust tubing - confirm tube sizing before ordering.
• Professional welding or exhaust fabrication required for installation.
• Compatible with Vibrant's full T304 stainless steel tubing lineup including straight tube, U-bends, couplings, and V-band flanges.
• For tight-radius 90° bends in 3.50" O.D., refer to Vibrant's tight-radius U-bend offerings in the same diameter.

Features

• Mandrel-bent T304 stainless steel maintains a consistent inner diameter throughout the full 90° sweep with no collapsing or flow restriction.
• 16-gauge (0.065 in.) wall thickness delivers excellent durability for both street performance and race applications.
• T304 stainless steel construction resists heat, corrosion, and acidic exhaust conditions far better than mild steel.
• 12" long leg on one end provides generous material for routing, trimming, and welding into the exhaust system.
• 4" short leg provides a clean starting point for tight exhaust routing without excessive material waste.
• Dimensionally consistent construction requires minimal surface preparation before TIG welding.
• Compatible with Vibrant couplings, V-band flanges, slip joints, and straight tubing for complete system builds.
• Backed by Vibrant's 5-year limited warranty.

Specifications

• Material: T304 Stainless Steel
• Tube O.D.: 3.50 in.
• Wall Thickness: 16-gauge (0.065 in. / 1.65mm)
• Bend Angle: 90°
• Centerline Radius (CLR): 5.25 in.
• Leg Length A: 4.00 in.
• Leg Length B: 12.00 in.
• Finish: Natural (Raw Stainless)
• Fitment: Universal
• Warranty: 5-year limited

Included Components

• 1x T304 Stainless Steel 90° Mandrel Bend - 3.50" O.D. x 4" / 12" Leg Lengths

Product Description

The Vibrant Performance 13057 is a 90° mandrel-bent T304 stainless steel exhaust tube in 3.50" O.D., built for custom exhaust and performance piping fabrication that demands consistent flow and dimensional accuracy through the bend. The true mandrel bending process preserves the full inner diameter through the 90° arc - eliminating the flow restriction and tube collapse common with crush-bent alternatives. At 16-gauge wall thickness, this bend holds up to the sustained heat and vibration of demanding performance and daily-driven builds alike.

The asymmetric 4"/12" leg layout gives fabricators a short positioning leg and a long leg for routing and trimming, making it straightforward to fit into a wide variety of exhaust system configurations. T304 stainless construction ensures long-term resistance to heat discoloration, corrosion, and acidic exhaust gas exposure. Pair with Vibrant 3.50" straight tubing, couplings, or V-band assemblies to complete a full matched stainless system from header to tip.