Fitment Information Lexus GS300 GS400 GS430 (1998 1999 2000 2001 2002 2003 2004 2005) Emissions Compliance This exhaust does not alter, replace, or modify any emissions equipment. Specs & Features T-304 Stainless Steel Direct Bolt-On Inlet: 77mm ID Tip: 113mm O.D. 1-Year Warranty Against Manufacturer Defects Closed Course, Off-Highway Use Only For those who like to taylor their exhaust to their own taste, Megan Racing offers an axle-back exhaust for the Lexus GS 300/350. Designed as a direct bolt-on to replace the stock piece, this axle-back system works in conjunction with the OEM Mid-Pipe and is easy to install within minutes.Constructed of T-304 Stainless Steel and polished to a mirror finish, this Axle-Back system offers free-flowing performance over your OEM restrictive exhaust system. Being constructed of Stainless-Steel, this exhaust piece is much more lighter than your OEM system and offers increased Power:Weight ratio that plays an important role in your cars handling and performance. Redline360 is an authorized Megan Racing dealer and sells only genuine and authentic Megan Racing Products.