MBRP UA9001 Universal 4-Inch Inlet to 5-Inch Outlet Exhaust Adapter

Behind our walls are people as obsessed as you with the quest for the ultimate in performance exhaust. For over fifteen years MBRP inc. has been delivering performance enthusiasts the most in power, the most in product quality and the most in customer responsiveness. It all began with the now famous B&B Eliminator, which soon achieved the status as the best selling performance snowmobile silencer of all time. Starting from little more than a vision and an absolute passion for all things performance MBRP inc. is now at the forefront of performance exhaust technology. Marshalling over ten decades of manufacturing and marketing expertise between them, the MBRP design team developed a line of performance diesel exhaust products that has made the rest of the industry take notice, and rush to catch up. Most recently MBRP Inc. has achieved something special for the sports truck enthusiast. The new sport line brings to the gasoline-powered vehicle the same perfect blend of style and toughness that diesel light truck owners have come to expect from MBRP. The line features a unique flow through muffler originally developed to increase the performance of thousand horsepower off shore marine engines. The result is a muffler that generates a deeper, mellow sound, improved performance numbers and cooler operating temperatures. For the future, MBRP inc. is determined to provide the highest fill rates in the industry, offer the most complete line of exhaust for diesel and sports truck enthusiasts and to be always pushing upward the definition of performance. Universal Exhaust Adapters; 4 in. Inlet Diameter To 5 in. Outlet Diameter; 7 in. Length; T409 Stainless Steel; Universal Adapter, T409 Stainless Steel.

• Use 4 in./5 in. Hardware No Matter Size Of System
• Universal.

Upgrade or adapt your exhaust system with the MBRP UA9001 Universal Exhaust Adapter. Designed with a 4-inch inlet and 5-inch outlet, this adapter provides a practical connection between different exhaust pipe sizes while supporting custom exhaust installations and system upgrades. Its universal design makes it suitable for a broad range of automotive applications where reliable exhaust component fitment is required.

Constructed from T409 stainless steel, the MBRP UA9001 is engineered to provide dependable performance in demanding exhaust environments. The material offers durability and corrosion resistance for long-term use, while the compact adapter design supports straightforward installation. Use compatible 4-inch and 5-inch exhaust hardware to secure the connection, depending on the configuration of the system.

MBRP has more than fifteen years of experience developing performance exhaust products for enthusiasts who value power, sound, quality, and responsiveness. The UA9001 reflects that focus with a functional design intended to help simplify exhaust system modifications. As a universal component, final fitment depends on the vehicle, exhaust layout, pipe alignment, and installation hardware. Professional installation is recommended when custom fabrication or system modification is required.

Product Specifications and Technical Data

• Brand: MBRP
• Part Number: UA9001
• Product Type: Universal exhaust adapter
• Inlet Diameter: 4 inches
• Outlet Diameter: 5 inches
• Overall Length: 7 inches
• Material: T409 stainless steel
• Application: Automotive exhaust systems

What's Included

• One MBRP UA9001 universal exhaust adapter

Fitment: Universal fitment; verify inlet and outlet pipe sizes, system configuration, clearance, and required installation hardware before ordering. This product is not vehicle-specific and may require custom exhaust work for proper installation.

Features:

• Universal Fitment: Connects exhaust components with a 4-inch inlet and 5-inch outlet for custom system configurations.
• T409 Stainless Steel Construction: Provides durable performance and corrosion resistance in demanding exhaust environments.
• Size Transition: Adapts a 4-inch exhaust pipe to a 5-inch exhaust pipe for system upgrades or repairs.
• Performance Exhaust Compatibility: Designed for use with automotive exhaust systems and compatible 4-inch and 5-inch hardware.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1