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3,5" 90mm downpipe - AUDI RS3 8V, TTRS - DAZA

Product details
  • Fabricated in 1.4301 stainless steel
  • 2 x 2,75" / 70mm to 3,5" 90mm
  • Tested to handle 900HP (hybrid and fullframe compatible)
  • Available in several versions (decat, 100 cell & 400 cell - please choose your version)
Scope of delivery
  • 1 x 3,5" / 90mm exhaust downpipe
  • 2 x decat-pipes alternatively 100 cell-pipes alternatively 400 cell-pipes  (please choose)
  • 2 x gasket
  • 6 x screw M8 and copper washer
Product information
3,5" 90mm downpipe - AUDI RS3 8V, TTRS - DAZA
Product description:

The HPerformance 3,5" 90mm downpipe replaces the oringinal factory downpipe. The Factory downpipe comes with a huge restriction on top, directly after the exhaut gas outlet of the turbocharger. As soon as the engine is loaded with more boost, the resulting exhaust gases cannot be handled properly by the stock downpipe. The temperature increases and the back pressure is rising due to the growing mass of exhaust gases. The HPerformance TÜV downpipe replaces the stock front catalysator and has 2 x 400cell catalysators under the car. This downpipe is street legal and can handle up to 850HP. We also offer the option to 2 x 200 cell or 2 x 100 cell as well as a twin decat straight pipe version. Depending on your countries regulations or your own power expectations you can choose your prefered style of catalysator. 

All of our downpipe solutions (400 cell, 200 cell, 100 cell or straight pipe) will offer significant exhaust gas temperature  and backpressure drop compared over the stock downpipe. Also, the sound is more deeptone and backfire will appear by downshifting. The power is increased by removing the stock downpipe to a HP downpipe round about 8-9% over stock. Back pressure reduces around 0,45 bar on stage 2 cars up to 1 bar on stage 3 cars.

Any change on catalysators (replacing, changing cells or size - different than stock) requires software tuning of the engine control unit.

Our TÜV catalysators do not come with TÜV documentations. They just fit the requirements to be legalized in combination with our software and hardware. We can approve them in combination with further hardware & software modifications in house.

Please Note:
Any of our items are not deisgned for beeing used street legal. Products that are street legal are marked as such. The offered items are for racing application only and must be installed by professional workshops with corresponding know how. If you want to install the parts on your own, please inform yourself up front, if you are able to handle the installation. You can also ask our technicans on the phone. We cannot take back items that have been incorrectly installed.

Manufacturer: HPerformance
Model: RS3 8P (2011-2012), TTRS 8J (2009-2014)
What are the expected power gains by using the HP downpipe compared to stock?
The power increase over a stock downpipe depends on further supporting modifications. If the downpipe is the only changed part on the vehicle you can expect to see 15HP and 30-35NM on top. If the software is modified the values increase up to 40HP and 100NM more.
Can I use the downpipe on a stock car?
If you install the downpipe on a stock car you either need to tune your ECU or alternatively use a lambda simulator tool, that you can get from us. Please ask our team for that, so we can add the simulator to the downpipe and you can drive it on stock car,s too.
Ist die Downpipe Legal? Kann Sie eingetragen werden?


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