Feline E430s eliminated?

[BENZE220AMG]

Hello everyone, I recently bought an E430 estate on a whim. The seller assured me that the exhaust still had its cats, but when I took it under the hood for the first time, I noticed a piece of pipe welded into the downpipe on both sides and a single O2 sensor located at the top. Looking on eBay, I saw that there are two types of exhaust for cars my age: one with one sensor and a cat halfway down the car, and another with two O2 sensors and two cats higher up. Any advice would be greatly appreciated, because I'm beginning to wonder if the March inspection was actually a faulty CO2 test. Thank you ahead of time

[Rudy7831]

With four cats, you're set. There are two main ones and two side ones. The secondary cats aren't monitored, therefore some individuals remove them so the check engine light won't go off.

[rab60bit88]

Back in 2000, there was just the two of them.

[Black_raven]

☺️

[blueWING007]

The primary cat must still be beneath the car for it to pass the MOT.

[DMGRS]

It is a US-market vehicle, although my 1997 E420 has four. Mine, too, are on my 2002 E55.

[Treeri]

On a 2000 E430, four cats. In order to pass a MOT, the primaries must still be present. Assuming the emissions are below acceptable limits, the secondary cutout should still be passed.

[Treeri]

https://nemigaparts.com/cat_spares/epc/mercedes/1/fg/210070/66g/49/212/