Fitment Information Lexus IS300 (2001, 2002, 2003, 2004, 2005) Emissions Compliance This is a catback exhaust and does not alter or replace any emissions equipment. Specs & Features 2.5" stainless piping 4" exhaust tip N1 style muffler Includes resonator Includes a removable silencer Includes hardware and gaskets Product Description Spec-D Tuning Exhaust Systems are direct bolt on replacements for your factory exhaust system and connect directly to your OEM components.  Made from quality stainless steel and CNC machined flanges for long life.  Mandrel bent piping provides smooth exhaust flow for the least amount of restriction to give you the most possible performance.   Spec-D Exhausts Feature: Stainless Steel construction Mandrel bent exhaust piping CNC Machined flanges Direct bolt on replacement Redline360 is an authorized and direct Spec-D Tuning Dealer. Warranty Information All Spec-D products sold on Redline360 as of 4/1/2021 now feature an extended warranty, free!  Spec-D Tuning offers a standard 90 day manufacturer defect warranty, but Redline360 doubles this warranty to 180 for any Spec-D products purchased on or after 4/1/2021. Warranty is valid for any manufacturer defect and does not cover product that has been modified.