My S52 obd1 swap is up and running so now I'm working on the exhaust. The plan is to run the eBay long tube headers into a single 3" pipe via a custom y-pipe.
Here is the question: should the O2 sensor be placed before (reading off 3 cylinders) or after (in the 3" pipe reading off all 6 cylinders) the y-pipe transition?
All the oem obd1 exhaust pictures I've found show the sensor reading off 3 cylinders.
Any advice is appreciated.
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Here is the question: should the O2 sensor be placed before (reading off 3 cylinders) or after (in the 3" pipe reading off all 6 cylinders) the y-pipe transition?
All the oem obd1 exhaust pictures I've found show the sensor reading off 3 cylinders.
Any advice is appreciated.
Sent from my iPhone using Tapatalk
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