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.
Features:
- 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
Required Software
- Stage 2
What’s Included:
- Unitronic Performance Downpipe Featuring a GESi 6” G-Sport Ultra High Output UHOX 400cpsi Catalytic Converter
- All required installation hardware and gaskets.
Fast Shipping and Professional Packaging
Due to our long-term partnership with UPS, FedEx, DHL and many other world-class carriers, we are able to offer a variety of shipping options. Our warehouse staff is highly skilled and will wrap your goods according to our precise and exact specifications. Before shipping the goods are thoroughly inspected and secured. We deliver to hundreds of thousands of customers every day in different countries. Our dedication to becoming the biggest online retailer around the globe is evident by this. The warehouses and centers of distribution are situated in Europe and the USA.
Please note that orders with multiple items are processed according to the specific item.
Before shipping, we will check the item thoroughly before sending the items. Most orders are shipped within 48-hours. Delivery time ranges between 3-7 days.
Returns
The stock is constantly changing and cannot be fully controlled by us due to the involvement of several entities, including the factory as well as our warehouse. Therefore, the actual inventory could change at any time. Please be aware it's possible your order could become unfulfilled when you have placed the order.
Our policy is valid for 30 days. If 30 days have gone without a trace since the purchase and we are unable to offer you a refund or exchange.
You are able to return an item if it is unused and is in the same state as the day you received it. It should also be in the original packaging.
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