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Wizard
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493 Posts
Discussion Starter #1
I have a 95 VR4. The service manual shows the O2 sensors in the downpipe. Is this true? If true how do you upgrade the downpipe or do the upgraded downpipes have openings for the O2 sensor?
 

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1,118 Posts
There are bosses welded into my Stillen DP for O2 sensors.
 
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