Audi A4before: Audi A4 2.8 Flex Pipe, Regular $200 each or Stainless Steel $250 eachafter: Audi A4 2.8 Flex Pipe, Regular $200 each or Stainless Steel $250 eachbefore: 2009 Audi A4 Exhaust Resonator Bypass, Regular $150 or Stainless $200after: 2009 Audi A4 Exhaust Resonator Bypass, Regular $150 or Stainless $200before: 2008 Audi A4 2.0T Muffler Bypass, Regular $150 or Stainless Steel $200after: 2008 Audi A4 2.0T Muffler Bypass, Regular $150 or Stainless Steel $200before: 2005 Audi A4 1.8T Exhaust Flex Pipe, Regular $350 or Stainless Steel $400after: 2005 Audi A4 1.8T Exhaust Flex Pipe, Regular $350 or Stainless Steel $4002003 Audi A4 Flex Pipe, Regular $150 each or Stainless Steel $200 eachbefore: 2008 Audi A4 Resonator Bypass W/ Y-Pipe, Regular $350 or Stainless Steel $450after: 2008 Audi A4 Resonator Bypass W/ Y-Pipe, Regular $350 or Stainless Steel $4502007 Audi A4 2.0T Exhaust Aftermarket Resonator $235 eachAudi A4 2.0T PE Exhaust Mod, Regular $200 each or Stainless Steel $2502009 Audi A4 Exhaust Muffler Bypass, Regular $150 or Stainless Steel $200, Magnaflow Tip-$150before: 2009 Audi A4 Exhaust Magnaflow Mufflers $325 eachafter: 2009 Audi A4 Exhaust Magnaflow Mufflers $325 each2012 Audi A4 Exhaust Magnaflow Muffler $325, Magnaflow Tip-$150before: 2008 Audi A4 2.0 Exhaust Flex Pipe, Regular $250 or Stainless $300after: 2008 Audi A4 2.0 Exhaust Flex Pipe, Regular $250 or Stainless $300Land Rover →