$320.00
Unleash the full performance potential of your Audi A4 or A5 B9 2.0T with the Untd. Performance 3″ Catless Downpipe. Designed to eliminate factory flow restrictions, this precision-engineered downpipe delivers massive improvements in exhaust velocity, turbo response, and power output—all while enhancing your exhaust note with a more aggressive, motorsport-inspired tone. Whether you’re building a street-tuned sleeper or a dedicated track machine, this is the essential first step in waking up your B9 2.0T.
A Stage 2 ECU tune is recommended for proper usage of this downpipe.
Available on backorder
Unleash the full performance potential of your Audi A4 or A5 B9 2.0T with the Untd. Performance 3″ Catless Downpipe. Designed to eliminate factory flow restrictions, this precision-engineered downpipe delivers massive improvements in exhaust velocity, turbo response, and power output—all while enhancing your exhaust note with a more aggressive, motorsport-inspired tone. Whether you’re building a street-tuned sleeper or a dedicated track machine, this is the essential first step in waking up your B9 2.0T.
The restrictive factory catalytic converter is replaced with a high-flow, mandrel-bent 3″ stainless steel pipe for maximum exhaust flow and reduced backpressure. This allows your turbocharger to spool faster and more efficiently, unlocking real-world power gains and improved engine response across the RPM range.
With the cat removed, your turbocharged 2.0T finally gets a voice. Expect a deeper, throatier exhaust note under load with louder turbo spool and a raw, energetic tone that makes every drive more exciting—whether you’re on the street or pushing hard on the track.
The improved flow characteristics and reduction in turbo lag lead to increased horsepower and torque—especially when paired with a proper ECU tune. Acceleration feels more immediate, throttle input is sharper, and the engine pulls harder from low to high revs.
Crafted from high-grade 304 stainless steel, the Untd. Performance Downpipe is built to withstand extreme heat and high-boost conditions. Precision TIG welds and CNC-machined flanges ensure a perfect fit, long-term durability, and leak-free performance.
This downpipe is a direct replacement for the factory unit, designed to bolt up seamlessly to your OEM turbo and mid-pipe. No cutting, welding, or fabrication required—just pure bolt-on performance with all necessary hardware included.
Intended for off-road and motorsport use, this downpipe is not emissions compliant and should only be used in areas where catless configurations are permitted. It’s ideal for enthusiast builds focused on maximum output and track-day performance.
Audi A4 (B9) 2.0T
Audi A5 (B9) 2.0T
(Fits models with longitudinally mounted 2.0T engines)
For those looking to transform their B9 2.0T into a true performance machine, the Untd. Performance 3″ Catless Downpipe is the upgrade that delivers. More power, more sound, more thrill—this is the start of your ultimate build.
⚠️ Note: For off-road and track use only. Not emissions-compliant in all regions. Please verify local regulations before installation.
A ECU tune is recommended for proper usage of this downpipe.
