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Unitronic Performance Catted Downpipe - Audi S4/S5 3.0TFSI (B9) 2018+
Lease for as low as $/week
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
Returns may be accepted within 14 days of purchase pending Return Merchandise Authorization (RMA). No returns or cancellations on special order items. All returns will be charged a 20% restocking fee, no exceptions.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Item must be able to be resold as new.
Several types of goods are exempt from being returned. Hazardous materials, fluids, greases, chemicals, and clothing are not able to return.
Free shipping is available within the lower 48 states for most orders totaling $199 or more. A free shipping option will be available during checkout. This offer is for delivery address in the continental United States and excludes shipments going to Alaska, Hawaii, Military Boxes, and items that require freight shipping.
Processing Time
Patterson Performance stocks a large quantity of items at any given time. Some items may require drop shipping from one of our various distributors. In stock items will ship within 1-2 business days. If you're needing your product quickly, please contact us to verify product availability before placing your order. Orders requiring additional verification (security concerns, incorrect information, etc.) may need additional processing time. Estimated shipping dates are not guaranteed and are subject to change based on inventory levels and manufacturer lead times. Backordered items are shipped immediately once available.
Items ship daily, If the item you ordered is not in stock, a member of our team will contact you via email / phone.
Patterson Performance will only ship to an address that varies from your billing address if payment is made via Paypal or a financing partner.
Patterson Performance ships from multiple warehouses throughout the United States, and sometimes from manufacturers overseas.
You can simply contact us via email / telephone for a live inventory check
Find more information at www.P65Warnings.ca.gov.