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Originally Posted by RandallNeighbour
I did not change out my stock cats, which contain both sets of 02 sensors.
...and while we're on the subject of sensors, the new headers and exhaust did NOT throw a CE light.  |
What about non 2.5L boxsters though? Your car has one set of cats, 2.7s and 3.2s have 4 cats and one pair of cats are attached to the exhaust manifold..they contain the 02 sensors, not the main cat. By putting on headers on non 2.5's you essentially get rid of the pair of cats that have the 02 sensors. Where are these sensors suppossed to go?