removing the cat - Page 2 - Ranger-Forums - The Ultimate Ford Ranger Resource


2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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Old 10-07-2013
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Join Date: Oct 2011
Location: Michigan
Posts: 347
Currently running a 2.5" system from the repaired by me y pipe back... SS Vibrant Performance 18" resonator in place of the cats, and a SS Hooker Aerochamber muffler, with a Magnaflow SS tailpipe. I did the work myself.

Had to replace the upstream oxy sensors and wow, that along with the exhaust woke this thing right up. I figure since the y pipe had been leaking air for so long and they didn't fix it, it made the engine run too rich and plugged up the cats. Doesn't stall or be lethargic in acceleration any more. No downstream oxy sensor either.

It is anything but quiet. Those that have heard it says it sounds good.

Might be adding another resonator or maybe a race muffler to tone it down a little more. Depends, I'll do it if it gets any louder from breaking in.
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