Magnaflow Pre OBD-II Universal Catalytic Converters
For engines built before 1996, these catalytic converters have stainless steel ribbed bodies that minimize expansion/distortion when the converter heats up. The ribs form a channel that protects pads from direct exposure to exhaust gas, plus they keep the ceramic catalyst aligned. Rigid OE-type heat shields add structural stability, and strong 1/2" lap-joints fuse necks to the body (for best flow, necks don't extend into bodies). Made in the USA.