UMP Modified Parts

Fine-tuning your Holley carburetor's air-fuel mixture is critical to extracting maximum performance and fuel efficiency. This assortment gives you the complete range of jets you need to dial in your carb without buying individual pieces. Whether you're...

If you're running a Modified at sanctioned tracks, aerodynamic efficiency directly translates to lap time and stability—and Fivestar's 3-piece valance gives you a competitive edge with precision-molded geometry that reduces front-end lift without adding...

If you're running a dirt Modified, you need a valance that matches your setup without costing you track time to install. Fivestar's modified aero valance delivers adjustable fitment and racing-sanctioned aerodynamics in a lightweight, durable package...

If you're running a Modified on dirt, aerodynamic efficiency directly translates to improved downforce and stability through corners—and Fivestar's MD3 valance kit delivers both without adding unnecessary weight. The overlapping flange design ensures a...

A quality rear hub is the foundation of reliable wheel assembly and safe load transfer to your suspension. The DMI Steel 5X5 GN delivers the durability and precision fit your racing or off-road build demands, with all essential components included for a...

When precision and durability matter most on the track, the Allstar Performance Spring Steel 40ft Roll (ALL23110) delivers exactly what serious racers and builders demand. This high-grade spring steel gives you the flexibility to customize critical...

Take your dirt modified to the next level with the Allstar Performance MOD Aluminum Body Brace Kit (ALL23106) — a race-ready solution that makes hanging new body panels faster, cleaner, and more secure than ever. Built from lightweight aluminum with...

Keep your race car's body panels secure and rattle-free with the Allstar Performance Flexible Body Brace Kit (ALL23080). Designed with flexibility in mind, this brace absorbs vibration while maintaining a solid hold — perfect for keeping everything tight...

Fuel system reliability hinges on preventing backflow and maintaining consistent pressure—two problems this check valve solves with a single, bolt-on component. By opening at just 3 PSI, it eliminates the need for expensive high-pressure pumps and...

Fuel backflow can kill system pressure and force you into expensive pump and regulator upgrades you don't need. This high-flow check valve seals the leak instantly when your pump shuts off, maintaining consistent pressure while delivering 20% more flow...

A quality air filter is fundamental to engine performance and longevity. This low-profile design delivers maximum airflow while fitting tight engine bays, making it ideal for custom builds and performance applications where space is at a premium. The dry...

A quality intake air filter is fundamental to engine performance—restricting airflow costs you horsepower and efficiency. This low-profile design delivers maximum air volume in compact engine bays, making it ideal for tight fitment applications where...

A quality air filter directly impacts engine efficiency, throttle response, and overall performance—especially in high-demand racing applications where every intake cycle matters. This low-profile design fits tight engine bays without sacrificing...

A properly sized air filter is critical to maintaining peak engine efficiency and protecting internal components from contaminants. This low-profile design fits tight engine bays without sacrificing airflow, making it ideal for custom builds and vehicles...

A clean, efficient air intake is fundamental to consistent engine performance, and this classic profile filter delivers straightforward reliability for qualifying applications. With its 14-inch diameter and compact 3-inch height, it provides optimal...

A quality air filter is foundational to engine performance—it directly impacts airflow efficiency, throttle response, and engine longevity. The Classic Profile Filter 14x3 delivers consistent, unrestricted air delivery while its washable design...

A quality air filter is fundamental to engine performance—it directly impacts airflow, combustion efficiency, and horsepower delivery. This classic profile cotton filter offers superior filtration without the recurring cost of disposable replacements,...

A quality air filter is the first line of defense between your engine and contamination—directly impacting combustion efficiency and overall performance. The Classic Profile Filter 14x5 delivers reliable filtration in a compact, bolt-on design that fits...

A quality air filter is fundamental to engine performance—it directly affects intake efficiency, combustion quality, and overall horsepower delivery. The Classic Profile Filter 14x5 offers reliable, dry-element filtration that maintains consistent...

A high-flow air intake requires an equally capable filter to maximize performance gains without sacrificing engine protection. This classic profile design delivers consistent airflow while the reusable cotton media eliminates the recurring cost and waste...