Ego-X Catback Exhaust System 3.5" - Audi S3 8V 300/310HP (ECE approved)
The delivery time for products in stock is 1-3 business days.
If the product is not in stock and it is a pre order product, the average delivery time is 5-21 business days. If the product has a longer delivery time than previously announced, we will be in touch.
EGO-X Catback piping for Audi S3 8V models. Available with ECE approval if you choose the Bull-X Tronic control unit.
- Piping size: 3.5" (89mm)
- Made of stainless steel
- Catback
- TIG welded
Included:
- Catback piping
- Necessary wiring for the flap controller (select the desired connection before adding to cart)
- Necessary fastening needs
- Installation instructions
The piping can be ordered in two different versions:
*With ECE approval*
Only when choosing Bull-X Tronic with a controller
The ECE approved pipework does not require a modification inspection and is approved for road use. When driving, you can choose between Comfort and Sport modes for how the flaps work. If your car has a driving mode selector, you can also control the flaps that way. Vehicles without a driving mode selector can control the flaps with the separate on/off button that comes with the car. The button is backlit, the flaps are closed when the light is on, and the flaps are open when the light is off. The exhaust flaps are controlled within the limits allowed by the ECE approval, regardless of the driving mode.
Bull-X Tronic offers two options for exhaust pipe openings
- Sport (Dynamic, Race): Within the limits allowed by ECE approval, the flap is always in the open position. When the car is stationary, the flap is always in the closed position.
- Comfort mode: The flap is always in the closed position, but within the limits allowed by ECE approval, the flap opens when the throttle is applied at least 75% while the car is moving.
*Without ECE approval*:
If you choose one of these three options, Bull-X Tronic "Race" , flap controller with switch or flap controller with remote control , product is not ECE approved
The Bull-X Tronic "Race" differs from the ECE approved model in that the exhaust flap can be set to the open position even when stationary, but when driving, depending on the driving mode and throttle position, the flap is controlled like the ECE approved model.