Discover the revolutionary line of high-performance exhaust systems and specialized motorsport parts from F4U at Weld Racing Parts. Each exhaust and component is meticulously designed to deliver unparalleled performance on the track. Join the automotive elite and maximize your vehicle's potential with the quality and precision of F4U.
Welcome to the Exciting World of F4U in Motorsport
Experience and Passion:
With over 25 years of experience, at F4U we have been passionately dedicated to the world of motorsport. Each day, our dedication and commitment drive us to reach new heights in manufacturing and developing competition parts across various categories.
Innovation and Constant Development:
At F4U, we firmly believe in innovation as the engine of progress. From conceptual design to final production, each part that leaves our facilities represents the culmination of years of research, development, and refinement.
Reliable Partner in Competition:
We are proud to be recognized as a reliable partner in motorsport competition. Currently, we have the honor of supplying parts for the prestigious FIA RX2e Championship in collaboration with QEV Technologies.
More Than a Brand, a Community:
At F4U, we are more than just a brand; we are a community of motorsport enthusiasts. Our shared passion for speed, the thrill of competition, and the constant desire for improvement unite us.
Join the Adventure with F4U:
We invite you to join us on this exciting journey in the world of motorsport. Whether you are looking for high-performance parts for your competition team or simply share our passion for speed, you are welcome to the F4U family.
The Splayed X-Pipe 53mm (2,08") 1.5mm thickness is designed to optimize exhaust gas flow in high-performance engines. Made from T304 stainless steel and TIG welded, it guarantees maximum strength and durability. Its unique design improves gas distribution, reducing backpressure and boosting engine power. Ideal for high-performance vehicles and custom...
Transform your exhaust with artisanal elegance. Discover the Stainless Steel Twin Tailpipe, meticulously handcrafted by F4U in Spain using the TIG welding technique. Each curve and weld reflects dedication to detail. Add distinction to your vehicle with this unique piece. Make your exhaust stand out like never before!
Opel Speedster 3" Turbo connection pipe made of high-quality stainless steel, specifically designed for the Z22SE engine. This pipe is compatible with Tullet systems, ensuring a perfect fit and optimized gas flow. Boost the performance of your exhaust system and ensure more power for your Opel Speedster. Perfect for those looking for reliability,...
Opel Speedster 3" turbo Z20LET connection pipe without catalyst made of 304L stainless steel, designed to optimize gas flow and improve engine performance. Compatible with the Z20LET engine, this pipe is more suited for track use as it eliminates the catalyst, providing a power boost and faster engine response. Made with durable materials and tested in...
Opel Speedster 3" connection pipe made of high-performance stainless steel, designed for the Z22SE engine. Compatible with Tullet systems, this component ensures optimized gas flow and enhances your exhaust system's performance. An ideal solution for those seeking quality, reliability, and maximum efficiency for their Opel Speedster. Get it now and boost...
The Splayed X-Pipe 73mm (2,87") 1.5mm thickness is designed to optimize exhaust gas flow in high-performance engines. Made from T304 stainless steel and TIG welded, it guarantees maximum strength and durability. Its unique design improves gas distribution, reducing backpressure and boosting engine power. Ideal for high-performance vehicles and custom...
We manufacture the CNC custom manifold flange you can't find, with the exact thickness and material you need for your project. Perfect for high-performance exhaust systems, it offers precision, durability, and a professional finish. Estimated delivery time: 2 weeks. Check the full product description for more details and available options.