Unitronic Performance Catted Downpipe - Audi S4/S5 3.0TFSI (B9) 2018+
The Unitronic Performance Downpipe for the 2017+ S4® & S5® 3.0TFSI® EA839 (CWG) engine is a direct bolt-on upgrade designed to optimally eliminate unwanted restrictions in the factory downpipe reduce turbo lag and enhance the exhaust note. It utilizes a 6? 400cpsi ultra high output catalytic converter designed in partnership with Unitronic from our emissions partners at Global Emissions Systems Inc (GESi®).
Paired with Unitronic Stage 2 Performance Software and other supporting bolt-ons this Performance Downpipe helps yield up to 467HP / 547LB-FT on the 3.0TFSI equipped B9 S4 and S5.
Warranty Registration is REQUIRED for all products integrating GESi Catalyst(s) HERE.
- GESi 6” G-Sport Ultra High Output UHOX 400cpsi Catalytic Converter
- 6" to 4.5" post-cat transition with T304 Stainless Steel tubing
- TIG-welded construction
- OEM-style thermal isolation/heat shielding
- Factory catalyst placement for maximum efficiency
- Proper factory Oxygen Sensor placement maintained
- Direct bolt-on fitment
- Enhanced exhaust note
- Compatible with the factory cat-back exhaust system
- Unitronic Performance Downpipe Featuring a GESi 6” G-Sport Ultra High Output UHOX 400cpsi Catalytic Converter
- All required installation hardware and gaskets.
- Stage 2
Related Hardware
- Intercooler Upgrade Kit For 3.0TFSI EA839 B9 S4 & S5 by Unitronic
- Unitronic Carbon Fiber Inlet for B9 S4 / S5 3.0TFSI
- Unitronic Carbon Fiber Intake System with Inlet for 3.0TFSI B9 S4/S5
- Unitronic Intake System for B9 Audi S4 and S5 3.0TFSI EA839
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Product Information
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Unitronic Performance Catted Downpipe - Audi S4/S5 3.0TFSI (B9) 2018+
Unitronic Performance Catted Downpipe - Audi S4/S5 3.0TFSI (B9) 2018+
The Unitronic Performance Downpipe for the 2017+ S4® & S5® 3.0TFSI® EA839 (CWG) engine is a direct bolt-on upgrade designed to optimally eliminate unwanted restrictions in the factory downpipe reduce turbo lag and enhance the exhaust note. It utilizes a 6? 400cpsi ultra high output catalytic converter designed in partnership with Unitronic from our emissions partners at Global Emissions Systems Inc (GESi®).
Paired with Unitronic Stage 2 Performance Software and other supporting bolt-ons this Performance Downpipe helps yield up to 467HP / 547LB-FT on the 3.0TFSI equipped B9 S4 and S5.
Warranty Registration is REQUIRED for all products integrating GESi Catalyst(s) HERE.
- GESi 6” G-Sport Ultra High Output UHOX 400cpsi Catalytic Converter
- 6" to 4.5" post-cat transition with T304 Stainless Steel tubing
- TIG-welded construction
- OEM-style thermal isolation/heat shielding
- Factory catalyst placement for maximum efficiency
- Proper factory Oxygen Sensor placement maintained
- Direct bolt-on fitment
- Enhanced exhaust note
- Compatible with the factory cat-back exhaust system
- Unitronic Performance Downpipe Featuring a GESi 6” G-Sport Ultra High Output UHOX 400cpsi Catalytic Converter
- All required installation hardware and gaskets.
- Stage 2
Related Hardware
- Intercooler Upgrade Kit For 3.0TFSI EA839 B9 S4 & S5 by Unitronic
- Unitronic Carbon Fiber Inlet for B9 S4 / S5 3.0TFSI
- Unitronic Carbon Fiber Intake System with Inlet for 3.0TFSI B9 S4/S5
- Unitronic Intake System for B9 Audi S4 and S5 3.0TFSI EA839
Original: $2,634.99
-65%$2,634.99
$922.25Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Unitronic Performance Downpipe for the 2017+ S4® & S5® 3.0TFSI® EA839 (CWG) engine is a direct bolt-on upgrade designed to optimally eliminate unwanted restrictions in the factory downpipe reduce turbo lag and enhance the exhaust note. It utilizes a 6? 400cpsi ultra high output catalytic converter designed in partnership with Unitronic from our emissions partners at Global Emissions Systems Inc (GESi®).
Paired with Unitronic Stage 2 Performance Software and other supporting bolt-ons this Performance Downpipe helps yield up to 467HP / 547LB-FT on the 3.0TFSI equipped B9 S4 and S5.
Warranty Registration is REQUIRED for all products integrating GESi Catalyst(s) HERE.
- GESi 6” G-Sport Ultra High Output UHOX 400cpsi Catalytic Converter
- 6" to 4.5" post-cat transition with T304 Stainless Steel tubing
- TIG-welded construction
- OEM-style thermal isolation/heat shielding
- Factory catalyst placement for maximum efficiency
- Proper factory Oxygen Sensor placement maintained
- Direct bolt-on fitment
- Enhanced exhaust note
- Compatible with the factory cat-back exhaust system
- Unitronic Performance Downpipe Featuring a GESi 6” G-Sport Ultra High Output UHOX 400cpsi Catalytic Converter
- All required installation hardware and gaskets.
- Stage 2
Related Hardware
- Intercooler Upgrade Kit For 3.0TFSI EA839 B9 S4 & S5 by Unitronic
- Unitronic Carbon Fiber Inlet for B9 S4 / S5 3.0TFSI
- Unitronic Carbon Fiber Intake System with Inlet for 3.0TFSI B9 S4/S5
- Unitronic Intake System for B9 Audi S4 and S5 3.0TFSI EA839





















