Check the listing for details. ECS Tuning Audi A4 B9 2.0 Front Resonator Delete Downpipe T304 SS ES#3690264. Condition: New other (see details). Listed at 300.00 USD. The ECS Tuning Audi A4 B9 2.0 Front Resonator Delete Downpipe is a high-performance auto part made of stainless steel. Designed to enhance the exhaust system and improve overall vehicle performance, this front resonator delete downpipe is a must-have for car enthusiasts looking to upgrade their Audi A4 B9 2.0. With a focus on quality and precision engineering, ECS Tuning ensures that this downpipe is a reliable and durable addition to your vehicle's system, providing a smoother and more efficient exhaust flow for a sportier driving experience. Front resonator delete was only used for one month and less than 200 miles. Brand new stainless steel bolts and locking copper nuts included. Gasket not included but can be sourced for under $10.