Description
Maximize the performance potential of your Audi S6, RS6, S7, or RS7 (C7) with the Untd. Performance 3″ Catless Downpipe. Engineered specifically for the high-output 4.0T twin-turbo V8, this race-inspired upgrade features a full 3-inch diameter for uncompromising flow, quicker turbo response, and serious power gains. Whether you’re chasing dyno numbers or building a street-dominating machine, this downpipe brings the sound and performance you crave.
Key Features:
Full 3” Catless Design for Maximum Exhaust Flow
The Untd. Performance Downpipe removes the restrictive factory catalytic converters and upgrades to a full 3-inch diameter to drastically improve exhaust velocity and reduce backpressure. This setup is ideal for heavily tuned builds and high-boost applications where every bit of flow counts.
Loud, Aggressive Exhaust Tone
The larger diameter and catless design unleash a more aggressive, raw exhaust note from the 4.0T V8. Turbo spool is sharper, pops and crackles are louder, and the overall sound is more visceral and motorsport-inspired. This is the sound of true performance.
Increased Power & Sharper Turbo Response
By optimizing exhaust flow, this downpipe allows the turbos to spool faster and breathe easier. The result is stronger throttle response, reduced lag, and a noticeable bump in horsepower and torque throughout the RPM range. Whether at the track or on spirited drives, the difference is immediate and exhilarating.
High-Quality Construction
Crafted from premium 304 stainless steel, the 3” Catless Downpipe is built to handle extreme heat and pressure. TIG-welded for strength and durability, it features precision CNC-machined flanges for a secure, leak-free fit. Built to perform under the most demanding conditions.
Direct Bolt-On Fitment
Designed for a seamless installation, this downpipe bolts directly to the factory turbos and mid-pipes. No modifications or welding required—just pure, bolt-on performance.
Track-Ready, Emissions-Delete Setup
Purpose-built for off-road and motorsport use, this downpipe is ideal for full race builds and high-output street cars where emissions compliance is not required. Its catless design provides the ultimate in performance and sound.
Compatibility:
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Audi S6 (C7) 4.0T Twin-Turbo V8
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Audi RS6 (C7) 4.0T Twin-Turbo V8
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Audi S7 (C7) 4.0T Twin-Turbo V8
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Audi RS7 (C7) 4.0T Twin-Turbo V8
For drivers looking to push their C7-platform Audi to the limit, the Untd. Performance 3″ Catless Downpipe delivers unmatched flow, sound, and power. Built for enthusiasts, tuned for response, and designed to perform—this is the downpipe your 4.0T was waiting for.
⚠️ Note: This product is intended for off-road and track use only. Not emissions-compliant in all regions. Please check your local laws before installation.
ECU PROGRAMMATION WOULD BE REQUIRED FOR OPTIMAL PERFORMANCE & REMOVAL OF CHECK ENGINE LIGHT











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