W211 AMG Discuss the W211 AMG's such as the E55 and the E63

CAT RECOMMENDATIONS?

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Old Jan 22, 2026 | 11:55 AM
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CAT RECOMMENDATIONS?

Can someone help me in recommending some cats for my soon to be LTH setup? I was thinking PLM 400cell but was wondering if anyone has had nay experience with them or others.

I live in the jolly state of CA
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Old Jan 24, 2026 | 07:56 AM
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You will need the factory exhaust system to pass in CA for the visual inspection no ??.... but the PLM cats look to be the best out there I believe.
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Old Jan 24, 2026 | 11:22 PM
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Originally Posted by SICAMG
You will need the factory exhaust system to pass in CA for the visual inspection no ??.... but the PLM cats look to be the best out there I believe.
Eh nothing $250 can’t do to be overlooked lol but I think I’m going to go catless
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Old Jan 25, 2026 | 08:23 AM
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In Virginia, random emissions testing stations are strategically placed on highway on ramps to ensure vehicles meet state standards. License plates are scanned and passing vehicles receive a confirmation letter.
Owners then visit the designated website, pay the required fee, and have the report sent to the DMV to finalize registration. The process concludes with a safety inspection.
Vehicles that fail emissions tests remain flagged until they meet compliance, and certified state inspectors are unlikely to risk their licenses by accepting bribes, as violations can result in severe consequences.
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Old Jan 25, 2026 | 08:27 AM
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Nice! I would do the same for sure and always have the cash in pocket when I go...just in case. I personaly would not go catless do to the smell. I did it for years with every car I built and that smell gets into everything,interior,clothes,hair....it's pretty nasty but that's just me. I would go with at least 100 cells so at least something is on there especially if you get reffed on the side of the road. Who needs that headach.
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Old Jan 25, 2026 | 08:30 AM
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Originally Posted by Yuille36
In Virginia, random emissions testing stations are strategically placed on highway on ramps to ensure vehicles meet state standards. License plates are scanned and passing vehicles receive a confirmation letter.
Owners then visit the designated website, pay the required fee, and have the report sent to the DMV to finalize registration. The process concludes with a safety inspection.
Vehicles that fail emissions tests remain flagged until they meet compliance, and certified state inspectors are unlikely to risk their licenses by accepting bribes, as violations can result in severe consequences.
Wait...so your driving,you go to get on the highway and then how are they doing the inspection ? What do they do that is not interupting the flow of traffic?
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Old Jan 25, 2026 | 02:46 PM
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Originally Posted by SICAMG
Nice! I would do the same for sure and always have the cash in pocket when I go...just in case. I personaly would not go catless do to the smell. I did it for years with every car I built and that smell gets into everything,interior,clothes,hair....it's pretty nasty but that's just me. I would go with at least 100 cells so at least something is on there especially if you get reffed on the side of the road. Who needs that headach.
Hmm good to know I didn’t think about that. Guess I’ll order the PLM cats

thank you
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Old Jan 25, 2026 | 02:50 PM
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On a completely different side note, is there a way to upload or program the central gateway if I purchased or wanted to reprogram my current one? Reason why I’m asking is that I think I f’ed mine up with a few options that my oil level no longer displays on the dash and I’ve changed 3 sensors for that.
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Old Jan 25, 2026 | 04:34 PM
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Honestly if your in California I woud go mid lengths and put cats in the factory location like I did. At least its close to a factory set up if you have issues down the road.
That state rubs me the wrong way.
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Old Jan 25, 2026 | 04:38 PM
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Originally Posted by SICAMG
Honestly if your in California I woud go mid lengths and put cats in the factory location like I did. At least its close to a factory set up if you have issues down the road.
That state rubs me the wrong way.
well kinda too late for that I already have the LTH lol I’ll just throw some cats on and should be good. Trust me this state is WEIRD but you can’t beat the weather
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Old Jan 25, 2026 | 04:56 PM
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Yea I have been there a couple times and San Diego was by far the best weather with the mornings in particular.That sun rise and the warm orange haze from the sun was memerable for sure.
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Old Jan 25, 2026 | 04:57 PM
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Originally Posted by SICAMG
Yea I have been there a couple times and San Diego was by far the best weather with the mornings in particular.That sun rise and the warm orange haze from the sun was memerable for sure.
Ahh yes San Diego is my favorite city only an hour away great weather food and scenery
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