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This Untd. Performance Braided flex downpipe features 3″ tapered to 2.5″ piping to achieve horsepower gains across the entire RPM range on 2.7L Audi S4/RS4 (B5) and A6/Allroad (C5). Catalytic converter is removed to eliminate restrictions on exhaust flow.
The unique hybrid design of the inlet flanges enables direct bolt-on for stock K03 turbo, upgrade K04 turbo and custom built RS6 turbo. -
Untd. Performance 304 Long Tube Headers – Audi 3.0T Supercharged – S4 S5 SQ5 B8 B8.5 – A6 A7 C7 C7.5
Maximize the performance of your Audi A6, A7, S4, S5, or SQ5 equipped with the 3.0 TFSI Supercharged V6 engine with the Untd. Performance 304 Long Tube Headers. Designed for enthusiasts who demand more power and sound from their Audi, these long tube headers provide a significant boost in horsepower, torque, and throttle response. Made from premium 304 stainless steel, these headers are engineered for ultimate durability and optimal exhaust flow, ensuring maximum efficiency and performance both on the street and at the track. With improved exhaust sound and enhanced power delivery, the Untd. Performance 304 Long Tube Headers are the perfect upgrade for unlocking the true potential of your supercharged Audi.
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Elevate the performance of your BMW M240i, M340i, M440i, or X5 40i xDrive with the Untd. Performance 4.5″ Catless Downpipe. Designed for the powerful B58 3.0L I6 turbo engine, this high-flow catless downpipe replaces the restrictive factory catalytic converters, significantly improving exhaust flow and turbocharger efficiency. The result is a marked increase in horsepower, faster turbo spool, enhanced throttle response, and a deeper, more aggressive exhaust note, making it the perfect upgrade for your BMW.
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Unlock the true performance potential of your BMW M240i, M340i, M440i, or 540i/740i xDrive with the Untd. Performance 4.5″ Catless Downpipe. Designed for the B58 3.0L I6 turbo engine, this high-flow catless downpipe removes restrictive factory catalytic converters to improve exhaust flow, reduce backpressure, and enhance turbo efficiency. The result? Increased horsepower, quicker turbo spool, improved throttle response, and a more aggressive exhaust sound, making it the perfect performance upgrade for your F3X BMW.
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Unleash the full power and performance of your BMW N55 engine with the Untd. Performance 4″ Catless Downpipe. Engineered specifically for the 2013-2018 M135i, M235i, M2, 335i, and 435i (F20/F21/F22/F30/F32/F33/F87), this high-flow downpipe upgrades your exhaust system with a full 4-inch diameter, designed to maximize power gains, improve turbo response, and deliver an aggressive exhaust tone. Whether you’re tuning for track performance or looking to enhance the driving experience on the street, this downpipe is the perfect solution.
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The Untd. Performance Air Cooler / Intercooler Kit for the Audi B9 RS4/RS5 2.9T EA839 is engineered for maximum cooling efficiency and reliability under high boost conditions. Featuring a high-capacity core and optimized flow design, it reduces intake air temperatures to maintain consistent power delivery. Built with premium materials for durability, this kit supports both stock and tuned applications. Perfect for enthusiasts seeking improved performance and heat management.
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Upgrade your Mini Cooper S R56 and R57 (2007-2012) with the Untd. Performance Intake Hose. This premium intake hose is designed to enhance airflow and improve engine responsiveness, making it an essential modification for any enthusiast looking to maximize their vehicle’s performance.
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Elevate your BMW’s performance with the Untd. Performance Air Intake Kit, specifically designed for N55 engines in the 335i and 435i models from 2016 to 2018. This high-performance intake kit enhances airflow and boosts engine efficiency, providing a thrilling driving experience.
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Enhance the performance of your BMW F1X 5-Series with the Untd. Performance Air Intake Pipe, specifically designed for the 535i equipped with the N55 engine from 2009 onwards. This high-flow air intake pipe optimizes airflow and improves throttle response, allowing your engine to perform at its peak.
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Elevate your BMW M3 or M4?s performance with the Untd. Performance Intake Pipe, meticulously designed for the S55 engine. This essential upgrade enhances airflow and boosts engine efficiency, providing a significant improvement in both power and throttle response.
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Enhance turbo response, airflow, and reliability on your BMW S55 with the Untd. Performance Aluminum Charge Pipe Kit, designed for the F87 M2 Competition, F80 M3, and F82/F83 M4 (2015–2020). Replacing weak OEM plastic pipes, these aluminum charge pipes offer superior durability, faster turbo spool, and smooth airflow for Stage 1–Stage 3 tuning, hybrid turbo, or big-turbo builds. Complete with CNC-machined fittings, high-temp silicone couplers, and a direct bolt-on design, this kit ensures a reliable, high-performance upgrade for any S55-powered BMW.
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The Aluminum Intercooler for VW Golf GTI 1.8T MK4 by Untd. Performance is engineered to deliver exceptional cooling efficiency and performance enhancement for your turbocharged engine. Constructed from high-grade aluminum, this intercooler features a lightweight design and superior heat dissipation capabilities, allowing for cooler, denser air to enter the engine.
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