O2 sensor help

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dylan5299

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I'm thinking about getting 2.5in duals with an H pipe and a couple glasspacks in under my truck. I'm not worries about the rear o2's because I'm just gonna tune those out. My question is, does the exhaust shop just add bungs for the front o2 sensors? I thought those are the ones that affect A/F ratio. I just want to make sure so nothing is getting f'ed up by the time the system gets done and installed. Appreciate the help
 

df2x4

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Are you going to use long tube headers? If so most of those come with bungs for the front O2 sensors already welded in.
 

df2x4

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In that case yes I would just have the shop weld in whatever you need. I'd at least consider upgrading to long tubes if you're going to all that effort, though.
 

Austin

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Here's what I did. I wanted duals with purple hornies and a short exhaust . My friend made me a make shift like h pipe out of my factory y pipe. Threw the hornies on and dumped them. Truck is pretty quiet actually. Runs great and no engine lights. I also have flowtech shortys.

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Austin

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I'm thinking about getting 2.5in duals with an H pipe and a couple glasspacks in under my truck. I'm not worries about the rear o2's because I'm just gonna tune those out. My question is, does the exhaust shop just add bungs for the front o2 sensors? I thought those are the ones that affect A/F ratio. I just want to make sure so nothing is getting f'ed up by the time the system gets done and installed. Appreciate the help

Mines not the prettiest but it works
 
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