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Audi A4 1.8t Thermal R&D exhaust with testpipe

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Uploaded by on Jun 8, 2009

Windy day in Denver, CO

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Autos & Vehicles

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Uploader Comments (decobra98)

  • Did you have any problems with th o2 sensors after you installed the test pipe?

  • Problems? No. The rear one would have thrown a check engine light but the APR software I have nullifies that.

  • u think ill have trouble with mine i have a b7 and mine is also stage 1 apr software. it wont throw the check engine light on will it?

  • You shouldn't. If you do, take it back to your APR dealer and they will cancel the code for free.

  • what rims? 18s or 19s?

  • 19s

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All Comments (6)

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  • Yes, it makes it much louder and throatier.

  • did the testpipe make a significant sound difference?

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