![Integrated Engineering ProCore Downpipe | B9 A4 | 2.0L Turbo I4 F01 · F02 740Li 3.0L Turbo I6 [N54] 5](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/IntegratedEngineeringProCoreDownpipeB9A42.0LTurboI4.png?v=1744407685)
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5") via a swedged pipe
or Audi 8J TTS 2
A replacement OEM C-clip is also available in case your OEM c-clip is lost
because the factory diverter has a long stroke and weak return spring
refer to the diagram to simplify the system
Integrated Engineering ProCore Downpipe | B9 A4 | 2.0L Turbo I4 F01 · F02 740Li 3.0L Turbo I6 [N54] 5") via a swedged pipeThe iE ProCore Downpipe for the Audi B9 A4 or A5 delivers an improved exhaust note with a massive increase in exhaust flow. Our unique in house engineered 4. 75" 200 CPI catalytic converter channels substantial flow to support beyond Stage 2 tuning and upgraded turbos. The specialty ProCore CAT design includes rare and precious metal coatings that clean and limit emissions output to align with factory ECU requirements. so that you can upgrade without
