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Old 09-15-2010, 02:58 PM
ten6 ten6 is offline
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Originally Posted by gabrieldy View Post
That is not true because all your O2 sensors are before the Y-pipe. You aren't messing with anything emissions related because it is after the cats....just helping out the flow. You have as much a chance of throwing a code from changing your Y as you do from changing your muffler. I did mine about 6-8 months ago and no problems at all.

I think if you lay under your truck for a few mins it'll make sense.

Did you notice any difference in changing out your Y-pipe?
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