All Things Mk5 > Mk5 General Area

Milltek vs Pipewerx

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pudding:
If that Pipeworx cat gets through the MOT I'll be surprised.  Even the Milltek one looks too small.

Cozza:
Mine passed MOT no problem at all back in March. Bought brand new & had been Fitted just over 7 months prior.

Powervalve Nige:
Top tip
Always ask what cat washcoat weight is  :wink:
A 5-gram washcoat will get through an MOT, but due to it being an entropic surface coating it degrades with use - so you have to wonder how many times.
The main cost element is in the precious metal coating, the greater the load the higher the cost.
If you can't get an answer or they don't know walk away.
FYI the OEM cat will typically have a 60gram coating.
Cheers'
Nige

pudding:

--- Quote from: Cozza on July 04, 2020, 06:43:49 pm ---Mine passed MOT no problem at all back in March. Bought brand new & had been Fitted just over 7 months prior.

--- End quote ---

So did my APR DP with the sports cat, only just, the first year.  Second year, flat out fail.

pudding:

--- Quote from: Powervalve Nige on July 06, 2020, 10:26:26 am ---Top tip
Always ask what cat washcoat weight is  :wink:
A 5-gram washcoat will get through an MOT, but due to it being an entropic surface coating it degrades with use - so you have to wonder how many times.
The main cost element is in the precious metal coating, the greater the load the higher the cost.
If you can't get an answer or they don't know walk away.
FYI the OEM cat will typically have a 60gram coating.
Cheers'
Nige

--- End quote ---

Exactly, it may get through 1 or 2 MOTs at a strict test station with not many miles covered between each one.....but who knows after that!
Been there too many times in the past with rubbish 'sports' cats, so I'm pleased to see this is an area you take seriously  :happy2:

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