AP Stage 2 not much of a noticable difference. - Page 2 - Subaru WRX Forum
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post #16 of 17 Old 05-09-2014, 12:55 PM
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Installing my up-pipe and catless downpipe on my 02 wrx next week. I was planning to run the OTS stage 2 map as well. I have read many threads about good and bad experiences, but picked up the downpipe for a good price and going to give it a shot. My question is about replacing the 02 sensor which are in the responses to this thread. Is that something that I'm likely to do, and what do I need to replace it with? Thanks

2002 WRX Wagon-Up-pipe, Invidia Catless Bellmouth Downpipe, Stage 2 OTS, Jack-n-the box antenna ball
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post #17 of 17 Old 05-09-2014, 01:04 PM
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Location: New Hampshire
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I am running the stage 2 OTS on my 05 WRX and am seeing no issues. I don't know if the 04-05's are that much different or not.

05 WRX Wagon - 409 AWHP / 334 WTQ Wicked Matt Tuned
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