Legal mods in NL

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Emadove
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Lid geworden op: 15 okt 2021, 15:21
Auto: BMW F30

Legal mods in NL

Bericht door Emadove » 15 okt 2021, 15:25

Hey everyone!
I was wondering if anyone has installed a catless downpipe in the Netherlands or at least a high flow downpipe?
I think from what I understood so far that catless is illegal and won't pass the emissions test but how about the high flow downpipe (200 cells instead of 400 cells?

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smiley
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Lid geworden op: 06 dec 2009, 01:07
Auto: Opel Speedster Supercharged
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Re: Legal mods in NL

Bericht door smiley » 15 okt 2021, 15:56

Welcome.

Most that drive a catless system have too yearly swap it for MOT.
Replacing your stock (probably 300 or 400 cells cat) for a sporty 200 cells one should normally still let you pass mot yet you can drive around with it.

We are also at a point where noise measurement is officially an MOT point, but only if the MOT station has a DB measuring device.
Some MOT stations specifically do not have one to facilitate the more sporty driver, so when it comes to MOT you may want to ask them in advance what they do.

Police is also cracking down on noisy owners, so if revving it in the high street is your hobby it could be costly.

Emadove
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Re: Legal mods in NL

Bericht door Emadove » 15 okt 2021, 16:05

smiley schreef: 15 okt 2021, 15:56 Welcome.

Most that drive a catless system have too yearly swap it for MOT.
Replacing your stock (probably 300 or 400 cells cat) for a sporty 200 cells one should normally still let you pass mot yet you can drive around with it.

We are also at a point where noise measurement is officially an MOT point, but only if the MOT station has a DB measuring device.
Some MOT stations specifically do not have one to facilitate the more sporty driver, so when it comes to MOT you may want to ask them in advance what they do.

Police is also cracking down on noisy owners, so if revving it in the high street is your hobby it could be costly.
That's cool I'm more looking to the performance aspect, I am going to do a muffler delete soon or install a new exhaust, then I'll see from there how it goes. Luckily revving in the street isn't one of my hobbies and I've never got in any problems with police yet.

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Martijn M
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Re: Legal mods in NL

Bericht door Martijn M » 15 okt 2021, 16:05

Also depends on the age of your vehicle. I believe from 2006 onwards, if it doesn't give an emission warning light (or emission fault codes in ECU) you can get through MOT with catless downpipes, as they don't measure CO2 then.

Emadove
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Re: Legal mods in NL

Bericht door Emadove » 15 okt 2021, 16:16

Martijn M schreef: 15 okt 2021, 16:05 Also depends on the age of your vehicle. I believe from 2006 onwards, if it doesn't give an emission warning light (or emission fault codes in ECU) you can get through MOT with catless downpipes, as they don't measure CO2 then.
It's a 2018 BMW F30 but that's fine I guess because when I get the high flow DP I will flash it with a tune and remove the engine check light that comes up

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daNpy
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Re: Legal mods in NL

Bericht door daNpy » 15 okt 2021, 16:24

Martijn M schreef: 15 okt 2021, 16:05 Also depends on the age of your vehicle. I believe from 2006 onwards, if it doesn't give an emission warning light (or emission fault codes in ECU) you can get through MOT with catless downpipes, as they don't measure CO2 then.
But the cats "visually" need to be there if I'm not mistaken.
So you can empty them, but better not replace them by just a pipe.

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smiley
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Re: Legal mods in NL

Bericht door smiley » 15 okt 2021, 16:29

Keep in mind that a good quality steel celled cat can get you practically the same healthy flow as a catless system without the extra noise and soot it creates.
Catless for just performance is neglectable.

TLRS
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Re: Legal mods in NL

Bericht door TLRS » 15 okt 2021, 16:37

^ wot he said..

Steve Dinan said a well designed system with cat cost 1,2% performance over non cat.

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Arthur
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Re: Legal mods in NL

Bericht door Arthur » 15 okt 2021, 17:10

Eeuwe, come there but in!
;)

Emadove
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Re: Legal mods in NL

Bericht door Emadove » 15 okt 2021, 20:03

Do you guys know any brands that offer good quality catted downpipes?

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EvdP
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Re: Legal mods in NL

Bericht door EvdP » 15 okt 2021, 20:39

Perhaps Wagner?

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WJ
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Re: Legal mods in NL

Bericht door WJ » 16 okt 2021, 11:32

I got a downpipe with 200cells cat from these guys:

https://rvsuitlaatdelen.nl/

No issues with MOT.

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Erik
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Re: Legal mods in NL

Bericht door Erik » 19 nov 2021, 14:03

WJ schreef: 16 okt 2021, 11:32 I got a downpipe with 200cells cat from these guys:

https://rvsuitlaatdelen.nl/

No issues with MOT.
JM tuning, nice, in my backyard :)

I just had two high flow DP's fitted to my M2 comp, for obvious reasons.
APK + sound (as empty ones are like trumpets).
Getting too old for APK bullshit LOL

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