There is also the possiblity that the pre-cat is okay and there is a crack in the manifold or something. When the temperature is right, it makes an engine speed dependent metalic ticking noise, like an exhaust leak or something. Of course that could just be from the pre-cat desenigrating too I suppose.
96 Ford Contour SE MTX, SVT exhaust, KKM intake, SP Motorsports slotted rotors, KVR pads, SP5000s
-Stereo sucks
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