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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.
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.
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.
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.
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.
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.
Reference: 540
Brand: F4U
Opel Speedster Decat 3" Turbo Z20LET EVO 2 Downpipe made from high-quality 304L stainless steel. Designed to provide better exhaust flow and enhance engine performance. Compatible with Opel Speedster Z20LET, as well as Vauxhall Astra G MK4 Z20LET H MK5 Z20LEH VRX 2.0 models. Built to optimize power without compromising reliability. Perfect for those...
Reference: 495
Brand: F4U
Mid section exhaust for Renault 5 GT Turbo 63.5mm made from high-quality stainless steel. This section is designed to optimize exhaust flow and enhance your engine's performance, ideal for modified engines. Its 63.5mm diameter allows for more efficient gas evacuation, providing increased power and a sporty sound. Perfect for those looking to improve...
Reference: 969
Brand: F4U
The Front section Renault 5 GT Turbo flex joint 2.5" OEM flange is designed for those looking for a more radical setup without replacing the original downpipe. Built to handle high temperatures and vibrations, its 2.5" flex joint absorbs movement and reduces stress along the exhaust system. The OEM flange ensures easy installation and a perfect fit to the...
Reference: 239
Brand: F4U
Final section Renault 5 GT Turbo 50mm made of stainless steel 304L with a trumpet finish and no silencer. Its 50mm diameter improves the exhaust gas flow, optimizing engine performance and providing a sporty sound. Ideal for those seeking more power and a bold sound, without sacrificing durability. Perfect for exhaust modifications in Renault 5 GT Turbo.
Reference: 644
Brand: F4U
Swan neck R5 GT Turbo with V-band 63.5mm made of stainless steel, designed for high-performance engines with increased power. Its V-band connection ensures quick, leak-free assembly, optimizing gas flow in high-output engines. Perfect for those seeking reliability, durability, and improved performance in custom projects.
Reference: 395
Brand: F4U
Final section Renault 5 GT Turbo 60mm made of stainless steel 304L, with 60mm diameter and no silencer. This exhaust final section is designed especially for engines with slightly more power than the stock one, improving the exhaust gas flow. This results in a better performance and a more aggressive sporty sound, ideal for those looking to optimize the...
Reference: 546
Brand: F4U
First section Renault 5 GT Turbo flexo 63.5mm V-band made from high-quality stainless steel, specifically designed for tuned engines. This section is distinguished by its flexibility, which makes installation easier and allows better alignment of the exhaust system. With a diameter of 63.5mm and a V-band connection, it ensures optimized exhaust flow and...
Reference: 680
Brand: F4U
The lateral final exhaust section for the Renault 5 GT Turbo, made of 304L stainless steel with an oval trumpet design and no silencer, is the ideal choice for those looking to enhance performance and sound. With a diameter of 60 mm, this exhaust optimizes gas flow, providing increased power and a more sporty driving experience, along with an aggressive...
Reference: 656
Brand: F4U
Swan neck for R5 GT Turbo made of high-quality stainless steel with 2 V-band connections. The connection to the Down pipe is 2.5" and the outlet is 2.36". This essential component features a 60mm diameter tube, designed to maximize exhaust flow and significantly improve engine performance. Ideal for automotive enthusiasts seeking durability and efficiency...
Reference: 496
Brand: F4U
Renault 5 GT Turbo final section 2.5", made of high-quality stainless steel to ensure strength and consistent performance. This version does not include a silencer and ends with a 2.87" tip, providing a straight flow that enhances engine response and highlights the unique sound of the Renault 5 GT Turbo. Its clean and precise design ensures a perfect fit...
Reference: 982
Brand: F4U
The side exit rear exhaust section for the Renault 5 GT Turbo is made from 304L stainless steel and features a 73 mm oval outlet with no silencer. With a pipe diameter of 63.5 mm, this exhaust is designed for performance applications, delivering a more direct gas flow, a stronger sound profile and a distinctive racing look.
Reference: 683
Brand: F4U
First section exhaust homologated in Spain for Renault 5 GT Turbo, manufactured by F4U. Includes flex pipe, silencer, and standard flange, designed in 304L stainless steel for durability and superior performance. Improves gas flow, reduces noise, and ensures easy and efficient installation. European quality for a perfect fit.
