Please see the DNA Motoring exhaust disclaimer and warranty information below Fitment Information Infiniti G35 Base Coupe 2-Door 3.5L (2003, 2004, 2005, 2006, 2007) Infiniti G35 Sport Coupe 2-Door 3.5L (2007) Specs & Features Designed to be a bolt on system (might require some modification for a perfect fit.  See below for more information) Provides a deep and upgraded exhaust note Stainless steel with polished mufflers TIG welded and CNC machined flanges Smooth exhaust flow with mandrel bent piping 4.5" OD Double Walled Rolled Tip 2.25" ID Piping Dual Mufflers Emissions Compliance This exhaust does not alter, replace, or modify any emissions equipment. DNA Exhausts do not ship to California, New York or Maine. Product Description DNA exhaust systems are designed to be a great way to upgrade your exhaust system at an entry level price point.  Each exhaust system looks fantastic and gives your car not only a true performance sound upgrade and performance boost but also gives your car a nice modified look.  Each system is designed to replace only non emissions related piping to ensure full emissions compliance. Manufacturer Warranty DNA Motoring exhaust systems are known for their super low price point.  Due to the very low price of these DNA exhaust systems, be aware that fit and finish will not be perfect.  You may be required to have the shop installing the exhaust do some modifications to make it fit better.  Some systems fit perfect while others require some work.  DNA warrants their exhausts for 30 days.