Vibrant 13172 4" Oval / 4" Round Stainless Steel Adapter (6")

Vehicle Fitment

• Universal - for custom exhaust or intake systems

Features

• Transitions from 4" oval tubing to 4" round tubing
• 304 stainless steel construction for durability and corrosion resistance
• 16-gauge wall thickness - strong yet weldable
• 6" overall length for compact, precise routing
• Smooth internal surface minimizes flow turbulence
• Easy to integrate into custom exhaust, muffler, or intake systems
• Straight, clean design with no bends
• Ideal for professional fabrication or DIY projects

Specifications

• Part Number: 13172
• Material: 304 Stainless Steel
• Wall Thickness: 16 gauge (~0.065")
• Inlet: 4" oval
• Outlet: 4" round
• Length: 6.00"
• Finish: Natural (raw) stainless steel

Included Components

• 1x Stainless Steel Transition Adapter (Part # 13172)

Product Description

The **Vibrant 13172** is a precision stainless steel adapter that transitions from 4" oval tubing to 4" round tubing. Its durable 304 stainless steel construction ensures long-lasting performance and excellent corrosion resistance.

With a 6" length and 16-gauge wall thickness, this adapter maintains smooth internal flow, minimizing turbulence and supporting high-performance exhaust or intake systems. Its straight design simplifies installation and fabrication in tight or custom layouts.

Perfect for professional fabricators and DIY enthusiasts alike, the 13172 allows seamless integration between oval and round tubing, making it an essential component for custom exhaust, muffler, or intake projects.