For EA113 K04 engines. 1.8 2.0 TSFI Engines EA113 with K04 Turbo. Audi TTS (8J). Audi S3 (8P). Muffler Delete for VAG 1.8 / 2.0 TSFI. This can increase throttle response and improved acoustics. These chambers cause turbulence in the air exiting the turbo which produces back pressure that negatively affects performance and response.
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