What O2 is this?

[TalonSpeed]

I have no idea what O2 setup I have on my car. I was hoping to switch this recirculated O2 to the MAP recirculated MVS O2 but I am sure I will have to buy a new down pipe because my old O2 is so much bigger!!! 3 bolt flange.

I am guessing old school RRE or Hahn Racecraft

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[donniekak]

I'd leave the old o2 on there and run a wastegate off the manifold.

 

[TalonSpeed]

Too late, already have BEP housing setup for wastegate off O2

 

[donniekak]

For cheaper than a new down pipe setup, you can have the wastegate opening welded shut, and a wastegate flange welded on the manifold. I'm just not a fan of downgrading parts.

 

[TalonSpeed]

I understand what you saying. I dont want a loud wastegate dump.

 

[KentStateTsi]

Looks like AMS. They were using 3 bolt flanges to make sure people bought all parts from them.

 

[Bud92gsx]

Damm that is much larger than the shiny 02.

The old one true 3 inch? And the one next to it measures what 2.5?

 

[TalonSpeed]

Damm that is much larger than the shiny 02.

The old one true 3 inch? And the one next to it measures what 2.5?

yes. I think I will have to sale the O2 and down pipe

 

[Bud92gsx]

I bet it seals better than 2 bolt,But x2 PITA factor.

Is the other end of your dp 3 bolts as well?