Lexus IS3002008 Lexus IS300 Muffler Bypass, Regular $150 or Stainless $200before: 2010 Lexus IS300 Exhaust Resonator Bypass, Regular $150 or Stainless Steel $200after: 2010 Lexus IS300 Exhaust Resonator Bypass, Regular $150 or Stainless Steel $200before: 2001 Lexus IS300 Exhaust Flanges Donut Gaskets & Spring Kit $150after: 2001 Lexus IS300 Exhaust Flanges Donut Gaskets & Spring Kit $150004 Lexus IS300 Exhaust Frt Flange bypass W/ Y-Pipe, Regular $380 or Stainless $500Lexus IS300 Exhaust Stainless Cutout $200 eachbefore: 2016 Lexus IS300 Exhaust Magnaflow Performance Mufflers $325 eachafter: 2016 Lexus IS300 Exhaust Magnaflow Performance Mufflers $325 eachLand Rover →