Aftermarket Audi B7 A4 Test Pipes (05-08)
Unleash the full power of your 2005-2008 Audi A4 by taking off that restrictive stock catalytic converter and replace it with a CTS or Billy Boat test pipe. Modded Euros has test pipes that are easily installed and make an instant impact. Gain that extra horsepower that will give you that extra push you’ve been looking for. Let your engine breathe a little and get yourself a new test pipe today.