Description
The Unitronic High-Flow Performance Downpipe for 2.5TFSI EVO (DAZA) engines is a direct bolt-on performance upgrade designed to eliminate restrictions in the factory exhaust system and optimize power delivery. When paired with Unitronic Stage 2 Performance Software, it helps reduce turbo lag, enhance exhaust tone, and achieve up to 621 HP / 564 LB-FT on E85 with supporting hardware modifications.
This downpipe features a GESi 5" G-Sport Ultra High Output UHO+ 400cpsi Catalytic Converter, engineered to meet or exceed emissions standards while improving exhaust flow. Its OEM-style corrugated mesh flex bellows and proper oxygen sensor placement maintain a reliable and factory-compliant installation. Direct bolt-on fitment ensures seamless integration with the factory cat-back exhaust system.
Key Features and Benefits:
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Cast Stainless Steel Pre-Cat Downturn and Post-Cat Transition – Smooth exhaust flow
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Dual 70mm T304 Stainless Steel Tubing – Corrosion-resistant and durable
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TIG-Welded Construction – Leak-proof, high-quality fabrication
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GESi 5" G-Sport Ultra High Output UHO+ 400cpsi Catalytic Converter – High-flow, emissions compliant
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Factory Catalyst Placement – Optimized catalytic efficiency
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OEM-Style Corrugated Mesh Flex Bellows – Absorbs engine movement without stressing mounts
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Proper Factory Oxygen Sensor Placement – No modifications required
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OE Exhaust Hanger Mounting Provisions – Easy installation using factory points
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OE Prop-Shaft Heat Shield Bracket – Ensures safety and clearance
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Direct Bolt-On Fitment – Compatible with factory cat-back exhaust system
Included Hardware:
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Unitronic High-Flow Direct Fit Downpipe for 2.5TFSI EVO
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All Required Installation Hardware
Recommended Software:
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Unitronic Stage 2
Fitment:
Audi RS3 2.5TFSI EVO
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2017–2020 Audi RS3 Base
Audi TT RS 2.5TFSI EVO Quattro
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2018–2021 Audi TT RS Quattro Base
This downpipe is a catted performance upgrade, designed to replace the restrictive factory component while enhancing turbo response and overall performance. Upgrade your Audi RS3 or TT RS 2.5TFSI EVO with the Unitronic High-Flow Downpipe for maximum power, efficiency, and refined exhaust tone.
