Stock O2 Housing Stud Spacing

[Paul@RTM]

Looking for the stock O2 housing (1g and/or 2g) outlet stud spacing. I haven't had a stocker in a while and I forget what the spacing is. I'm thinking about a downpipe project and it would be useful to be able to revert back to stock if necessary. Thanks in advance.

 

[Kryndon]

Paul, we talkin' about essentially the flange on the downpipe that mates to the O2 housing? If so, I have that laying around somewhere and I can measure it from bolt hole to bolt hole. Will do tomorrow though as it's half past midnight as of writing.

 

[ThunderChild]

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Downpipe bolts appear to be 3.75" spacing. O2 housing flange pics for posterity.

 

[Paul@RTM]

That works! Thanks ThunderChild.