Looking for aftermarket parts to modify or upgrade your Audi S4 with catalytic converter universal? At Tunersports.com we carry a huge selection of the top name brand performance catalytic converter universal parts and accessories for your S4.
Whether you have a 1992 or 2009 Audi S4 in Avant to Cabriolet trim we have you covered. We have 21 catalytic converter universal available to mod your S4. All parts have free shipping to the Continental US 48 States.
 IN STOCK - LOW 3322304MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 3322304 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construct... MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 2.00in PC1 1992-1994 Audi S4 Base $560.00 |
 IN STOCK - DROPSHIPS 408004MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Universal 2.00 inch CA Tier1 2000-2000 Audi S4 Base $298.00 |
 IN STOCK - DROPSHIPS 441004MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Univ 2.00inch OBDII Rear 50 State 2001-2002 Audi S4 Avant / Base $503.00 |
 IN STOCK - DROPSHIPS 441005MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Univ 2.25inch OBDII Rear 50 State 2001-2002 Audi S4 Avant / Base $503.00 |
IN STOCK - DROPSHIPS 441006MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Univ 2.50inch OBDII Rear 50 State 2001-2002 Audi S4 Avant / Base $503.00 |
IN STOCK - DROPSHIPS 441204MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Universal 2.00 inch Rear CA 2000-2000 Audi S4 Base 2004-2006 Audi S4 Avant / Base / Cabriolet $585.00 |
 IN STOCK - DROPSHIPS 441205MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Universal 2.25 Rear 540 2000-2000 Audi S4 Base 2004-2004 Audi S4 Avant / Base / Cabriolet 2006-2006 Audi S4 Avant / Base / Cabriolet $516.00 |
 IN STOCK - DROPSHIPS 441206MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Universal 2.50 Rear 540 2000-2000 Audi S4 Base $585.00 |
IN STOCK 441334MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Univ 2.00inch 1-O2 Rear 50 State 2000-2000 Audi S4 Base $517.00 |
IN STOCK - DROPSHIPS 441335MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Universal 2.25 Rear with O2 2000-2000 Audi S4 Base $517.00 |
 IN STOCK - DROPSHIPS 444004MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Univ 2.00inch OBDII Front 50S 2001-2002 Audi S4 Avant / Base $327.00 |
IN STOCK - DROPSHIPS 444005MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Univ 2.25in Inlet/Outlet Center/Center Oval 9inx6.5inx13in 2001-2002 Audi S4 Avant / Base $371.00 |
IN STOCK - LOW 444006MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Univ 2.50inch OBDII Front 50 Sta 2001-2002 Audi S4 Avant / Base $371.00 |
IN STOCK - DROPSHIPS 444134MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Universal 2.00 with 1-O2 Front CA 2000-2000 Audi S4 Base $332.00 |
 IN STOCK - DROPSHIPS 444205MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Universal Chrysler/Ford/Mercedes-Benz/Saab/Toyota/Volkswagen *CALIFORNIA OBDII* 2000-2000 Audi S4 Base $378.00 |
IN STOCK - DROPSHIPS 444206MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Universal 2.50 Front CA 2000-2000 Audi S4 Base $378.00 |
IN STOCK - DROPSHIPS 444506MagnaFlow Universal Catalytic converters are designed for easy bolt-on installation for the Professional Installer. Each is designed to exact the original equipment specifications. While the majority off the Universal Catalytic converter products do not require welding; cutting or bending; limited ... MagnaFlow Conv Universal 2.50 Front Spun 2005-2005 Audi S4 Avant / Base / Cabriolet $421.00 |
 IN STOCK 51204MagnaFlow specializes in superior catalytic converter and exhaust technology and has spent the past 30+ years earning its reputation as a global market leader. American engineered and manufactured, MagnaFlow Catalytic Converters combine efficient industrial design to produce a product that exceeds, ... MagnaFlow Conv Univ 2in Inlet/Outlet Ctr/Ctr Round 9in Body L x 5.125in W x 13in Overall L 49 State 2004-2008 Audi S4 Avant / Base 2004-2009 Audi S4 Cabriolet $194.00 |
 IN STOCK 53004MagnaFlow specializes in superior catalytic converter and exhaust technology and has spent the past 30+ years earning its reputation as a global market leader. American engineered and manufactured, MagnaFlow Catalytic Converters combine efficient industrial design to produce a product that exceeds, ... MagnaFlow Conv Univ 2 FED 1992-1994 Audi S4 Base $97.00 |
 IN STOCK 99005HMMagnaFlow specializes in superior catalytic converter and exhaust technology and has spent the past 30+ years earning its reputation as a global market leader. American engineered and manufactured, MagnaFlow Catalytic Converters combine efficient industrial design to produce a product that exceeds, ... MagnaFlow Conv Univ 2.25inch 2000-2002 Audi S4 Base 2001-2002 Audi S4 Avant $222.00 |
 IN STOCK 99204HMMagnaFlow specializes in superior catalytic converter and exhaust technology and has spent the past 30+ years earning its reputation as a global market leader. American engineered and manufactured, MagnaFlow Catalytic Converters combine efficient industrial design to produce a product that exceeds, ... MagnaFlow Conv Univ 2.00inch 2004-2008 Audi S4 Avant / Base 2004-2009 Audi S4 Cabriolet $178.00 |