Second pre-cat in Y-Pipe
#1
Second pre-cat in Y-Pipe
So basically the only way to get rid of the second pre-cat in the 99 maxima's is to get the header system?? i'm probably wrong. has anyone figured out how to get rid of the second pre-cat when installing the y-pipe?
thanks
thanks
#3
Originally Posted by Brudaddy
I think it is in the pipe. I mean, when you replace the stockie with the after market y-pipe, you get rid of all the pre cats.
#9
Originally Posted by Brudaddy
I think it is in the pipe. I mean, when you replace the stockie with the after market y-pipe, you get rid of all the pre cats.
I believe the thread author is correct, at this time the only way to remove that extra pre-cat would be with headers, and even then the headers would have to have the correct hole for the o2 sensor. I could be wrong tho, I remember Budget and some other people working on ways around it. Perhaps they figured it out.
#11
Originally Posted by hakk97se
Incorrect. On the 99 Cali spec cars, you can't get rid of one of the pre-cats as the thread author elluded to. They are referred to as 99.5 cars generally - they have a 5th gen style exhaust, ecu, chip in the key, etc. They also have an extra pre-cat and o2 sensor.
I believe the thread author is correct, at this time the only way to remove that extra pre-cat would be with headers, and even then the headers would have to have the correct hole for the o2 sensor. I could be wrong tho, I remember Budget and some other people working on ways around it. Perhaps they figured it out.
I believe the thread author is correct, at this time the only way to remove that extra pre-cat would be with headers, and even then the headers would have to have the correct hole for the o2 sensor. I could be wrong tho, I remember Budget and some other people working on ways around it. Perhaps they figured it out.
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