4" 101.6mm Catless RACE downpipe + OPF simulator - Audi RS3, TTRS, RSQ3 - OPF models - DNW
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- Reduces the exhaust gas temperature at peak up to 150°C after turbocharger compared to the original downpipe
- Up to 30% less exhaust back pressure than comparable 3.5 inch downpipes
- Designed for 1400hp
- Continuous 4 inches 101.6mm
- Manufactured in 1.4301 stainless steel
- 1:1 interchangeable with standard downpipe
- Suitable for all 2.5 TFSI 400PS OPF models
- 1 x 4 inch / 101.6mm downpipe
- 1 x 4 inch / 101.6mm catalytic converter replacement pipe
- 1 x V-band ring / clamp
- 1 x stainless steel laser-sintered Y-piece for adaptation with V-band
- 6 x M8 screw and copper nut
- 2 x gasket for triangular flanges
- HPerformance OPF / Lambda Simulator
Product description:
The HPerformance 4 inch 101.6mm downpipe comes directly from the development of our 1/4 mile vehicle into series production. It is the first downpipe in the world to be built with this pipe diameter throughout. It starts at the turbo outlet and replaces the standard pre-catalytic converter. With this version of the downpipe, there is an extreme change in sound / sound improvement, as both catalytic converters and OPF filters are no longer required.
The pipe diameter reduces the exhaust back pressure by up to 30% (depending on the boost pressure, the turbocharger and other peripherals) and thereby massively reduces the tendency of the engine to "knock" on cylinders 2 and 3 - which begins at the latest at 700hp on 102 octane and 820hp on E85. During our turbocharger development we were able to determine several times that the difference between 3.5 inches (88.9mm) and 4 inches (101.6mm) resulted in up to 20hp and 25NM, as well as a reduction in the exhaust back pressure by up to 0.15 bar, even with a downpipe directly on the floor of the vehicle.
These advantages are now also available for the road, as the downpipe has been made ready for series production.
Any modification to catalytic converters (replacement, change of cells or size - different from the original state) requires a software adaptation of the engine control unit. With our remote flash solution, we also offer suitable tuning for the DNW 2.5 TFSI. In combination with the Lambda and OPF simulator box, this downpipe can also be driven without tuning.
Current estimated delivery time: 4-5 working days
| Manufacturer: | HPerformance |
|---|---|
| Motor version: | RS3 8Y - DNWC, RS Q3 - DNWC, TTRS RS3 - DNWA |
| Model: | RS3 8V (2018-2020), RS3 8Y (2021-202X), RS Q3 (2019-2020), TTRS 8S (2020-2023) |
Please note: In accordance with our General Terms and Conditions, we would like to expressly point out once again that all articles that are not expressly marked with a TÜV / EC approval do not have approval in the area of the StVo. These articles must therefore be type-approved by the user before they can be used on public roads. Otherwise, these products may be used in racing. This article is not permitted in the area of the StVZO and leads to the loss of the operating license and insurance cover. This modification is only for motorsport and competition purposes at closed events.
- 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.
