grapefruit

I know a stock 180 fwd cat has the second o2 sensor placed a few inches behind the cat. Now for those of you who have purchased a high flow replacement, Did the new cat have the same set up? Or was the o2 bung located in the cat?

RedRoadster

My techtonics downpipe with cat has the o2 sensor bungs in just about the same locations as stock, though the pre-cat one seemed a little closer to the cat itself.