Magnaflow 09-12 Infiniti FX35 3.5L Direct Fit Converter

Inside the box you get the MagnaFlow 5582143 catalytic converter along with four bolts, six flat washers, one crush ring gasket, four nuts, and one flange gasket -- everything needed to bolt this converter onto your 2013 Infiniti FX37 or 2014-2016 Infiniti QX70 with the 3.7L engine. Having fresh hardware matters on these vehicles, since the factory bolts and gaskets are often corroded after years of heat cycling.

This is a CARB compliant direct-fit catalytic converter, meaning it meets California Air Resource Board standards and is legal for use in all 50 states. MagnaFlow builds it with 16-gauge 409 stainless steel tubing and mandrel bends that replicate the OE exhaust geometry. The spun body uses a single laser fusion weld to reduce the chance of leaks at the converter shell, while 308 stainless steel MIG welds handle the pipe joints.

MagnaFlow's 3D scanning process during development means the pipe routing, flange locations, and hanger positions should match the factory setup closely. No cutting or welding is required for installation -- this is a bolt-on replacement that uses the included hardware. Confirm that your vehicle's Executive Order number and Engine Family Number match this converter's CARB EO before proceeding with the install.