Audi S3 8V Quattro 2.0 TSI DJHA Rear Muffler Active Exhaust Valved Resonator

Audi S3 8V Quattro 2.0 TSI DJHA Rear Muffler Active Exhaust Valved Resonator is an original component from the Mufflers and resonators group, designed for installation in the rear section of the exhaust system. Engineered by Audi, it ensures consistency with the factory exhaust line, maintaining the appropriate sound characteristics and exhaust gas flow for the S3 Quattro version.

Specifications and technical data

• SKU: 8V3253609M-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8V3253609M
• Substitutable numbers: 8V3253609M, 8V3 253 609 M
• Location on the vehicle: Rear
• Category: Mufflers & Resonators

Purpose and function in the exhaust system

The presented rear muffler with resonator is dedicated to the sports version of the Audi S3 8V with Quattro drive and the 2.0 TSI DJHA engine. The component is mounted in the rear part of the vehicle, where it is responsible for noise reduction, sound shaping, and stabilizing exhaust flow under various engine loads.

Thanks to the use of an active exhaust valve, the system can operate in different acoustic modes – from a more subdued, comfortable sound to a more dynamic tone characteristic of the S version. This solution allows for maintaining the car's daily usability while emphasizing its sporty character during more spirited driving.

Construction and active exhaust valve

The muffler combines the functions of a final silencer and a resonator in one housing, which improves the refinement of the powertrain and reduces unwanted acoustic vibrations. The integrated valve is controlled by the vehicle's system, allowing for automatic adjustment of exhaust flow to current driving conditions.

This solution provides:

• more precise pressure management in the exhaust system,
• better throttle response in specific RPM ranges,
• a consistent, sporty sound in line with the factory characteristics of the Audi S3.

Benefits of using an original Audi muffler

Using an original muffler with an active valve in the Audi S3 8V Quattro allows for maintaining factory exhaust system performance parameters and compatibility with the vehicle's electronics. Proper fitment of geometry and mounting points facilitates installation and minimizes the risk of improper exhaust line alignment.

Compared to aftermarket replacements, the original component ensures:

• compliance with factory exhaust valve control maps,
• stable, predictable behavior under high loads,
• maintenance of the correct noise level in accordance with vehicle homologation.

Condition and service application

The component comes from a used vehicle, making it an attractive service solution for users looking for an original part at a reasonable price. It can be used both for post-accident repairs and for replacing a worn-out muffler to restore the proper operation of the exhaust system.

For workshops specializing in the Audi brand, such a muffler serves as a practical base for professional repair, without the need for adaptation or structural modifications, which shortens vehicle service time.

Expanding the Audi exhaust system

If you are planning a comprehensive repair or upgrade of the exhaust zone in your Audi and need other elements from the same group, such as tailpipe sections, additional mufflers, or center resonators, check out the available parts in the Audi mufflers and resonators category.

For drivers who are also thinking about improving interior ergonomics and enhancing the sporty driving experience, an article describing when it is worth deciding to install a premium-class steering wheel may be helpful – you can find it here: Personalization and ergonomics – when is it worth replacing the steering wheel with a premium model?.