4" (101.6 mm) EG/ECE Downpipe for Audi TTRS 8S - DAZA
✔️ Significantly improved, sporty sound ✔️ Plug-and-play without any software configuration ✔️ With EC/ECE approval ✔️ Thermo Integral insulation
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SHIPPING IS EXPECTED AT THE END OF JULY 2026
Product description:
The EC/ECE-approved 4" (101.6 mm) downpipe from HPerformance was developed specifically for the 2.5 TFSI DAZA engines and combines aerodynamic optimization with OEM-like integration and unrestricted suitability for everyday use.
At the heart of the design is a fully flow-optimized geometry, starting right at the turbocharger outlet. A precisely engineered inlet ensures clean, low-loss transfer of the exhaust gases from the turbine housing into the 4-inch cross-section.
Further along, the continuous pipe run ensures a stable flow without abrupt changes in cross-section. The integrated 160 mm ceramic catalytic converter with built-in thermal insulation is optimally integrated from a fluid dynamics perspective and designed for high efficiency in a production environment.
A specially designed outlet behind the catalytic converter promotes the even expansion of the exhaust gases and helps further reduce flow losses and backpressure. This overall design reduces exhaust backpressure and improves the system’s thermal performance, which has a positive effect on efficiency and responsiveness.
An additional effect of the enlarged, evenly tapered pipe geometry is a significantly altered sound character: The 2.5 TFSI produces a deeper, more powerful, and richer sound without coming across as unpleasant or intrusive. The downpipe meets the requirements of the EC/ECE regulation and is therefore legal for use on public roads.
No engine control unit modification is required. Typical HPerformance: Designed with a focus on consistent results, technical precision, and durable components—engineered for demanding on-road use. No software tuning required: This EC/ECE-approved downpipe can be installed without modifying the engine control unit.
Product details:
EC/ECE-approved (approved for road use in accordance with applicable regulations)
No adjustment to the engine control system is required
Flow-optimized 4" (101.6 mm) piping throughout
Flow-optimized inlet funnel (Turbo Inlet)
Flow-optimized outlet (post-cat outlet)
160 mm ceramic catalytic converter with integrated thermal insulation
- Improved exhaust gas dynamics and efficiency
- Optimized thermal performance under high loads
- A deeper, more powerful, and richer sound
- Reduced exhaust backpressure thanks to optimized geometry
- Made of 1.4301 stainless steel
- Seamless integration (Plug & Play)
Developed and tuned by HPerformance
Scope of delivery:
1 x 4-inch / 101.6 mm downpipe
2 x double couplings
1 x connecting clamp
Suitable vehicles:
- Audi TTRS 8S (DAZA, from 2017)
Unless otherwise indicated, all articles and services are racing articles without guarantee / warranty and without STVO approval.
The same applies to modifications made to the vehicle. The performance values offered are average values on ARAL 102 OKTAN fuel, which may deviate accordingly due to inferior fuel or wear on the vehicle.
No acceleration times are guaranteed. Subsequent misfueling may cause damage to the vehicle. No guarantee / warranty is assumed for this!
HPerformance does not assume any mobility warranty / costs for the duration of the conversion or any resulting delays.
Scheduled appointment periods are not binding and may vary.
All services are special and custom-made products that are excluded from the statutory right of return.
No warranty is assumed for products that are not installed in a specialist workshop by trained specialist personnel.
Work on motor vehicles may only be carried out by trained specialists. In addition to product malfunctions, installation errors can also lead to dangerous technical and possibly legal consequences for the vehicle.
Therefore, please have all conversions carried out by a specialist vehicle workshop of the guild.
If no instructions for installing a product are available for download in the online store, these are not available
- No installation advice / installation instructions are provided by telephone.
If vehicles have already been modified beforehand, additional costs may be incurred. Please note that our TÜV-approved/registrable products are not necessarily compatible with products from other manufacturers ! Please check in advance whether your already installed hardware parts, which are not from HPerformance, are TÜV-compliant with our products!
Discoloration occurs on the silencers, pipe and tailpipe of all exhaust system components during operation. These are material-related changes that are not covered by the warranty/guarantee of the item and have no negative effect on the use or technical properties of the item.
