BMW 525ibefore: 2007 BMW 525i Muffler Bypass, Regular $150 or Stainless $200 & Magnaflow Tips $150after: 2007 BMW 525i Muffler Bypass, Regular $150 or Stainless $200 & Magnaflow Tips $150before: 2006 BMW 525i Exhaust Resonator Bypass, Regular $150 each or Stainless $200 eachafter: 2006 BMW 525i Exhaust Resonator Bypass, Regular $150 each or Stainless $200 eachLand Rover →