MBRP UA1007 T409 Stainless Exhaust Adapter, 3.5" ID to 4" OD, 7"L

Compatible Applications

• Universal - for connecting a 3.5" exhaust system pipe to 4" diameter aftermarket components, including MBRP 4" and 5" hardware

Fitment Notes

• 3.5" inside diameter expanding to 4.0" outside diameter
• 7.0" total adapter length
• Not mandrel-bent - a straight expanding adapter piece

Features

• Lets fabricators and installers change exhaust pipe diameter, simplifying the addition of an aftermarket exhaust system or custom fabrication work
• T409 stainless steel construction offers strong corrosion resistance and long-term durability
• Universal fit connects to MBRP's 4" and 5" exhaust hardware regardless of the existing system's original size
• Full bolt-on design compatible with clear, straightforward installation using minimal tools
• Backed by MBRP's warranty coverage on stainless steel components

Specifications

• Type: Universal Exhaust Pipe Adapter
• Inside Diameter: 3.5"
• Outside Diameter: 4.0"
• Length: 7.0"
• Material: T409 Stainless Steel
• Finish: Natural

Included Components

• 1x Exhaust Pipe Adapter

Product Description

The MBRP UA1007 solves a common fabrication headache: connecting exhaust components with mismatched pipe diameters. This T409 stainless steel adapter expands a 3.5" exhaust pipe to a 4" outside diameter, letting builders bolt on MBRP's 4" and 5" hardware - or any other 4" component - without custom fabrication.

Built from durable T409 stainless steel for long-term corrosion resistance, this adapter is a simple, effective piece for anyone upgrading an existing exhaust system to larger-diameter components or piecing together a custom exhaust build. Straightforward to install with minimal tools, it's a practical, no-frills solution for completing a mismatched exhaust setup cleanly.