All Things Mk5 > Mk5 General Area
Milltek vs Pipewerx
Cozza:
--- 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 ---
Thanks for that info. Admittedly none of that was asked before purchasing but now I know for future reference. May have to upgrade to that powervalve sooner then anticipated!
Cozza:
--- Quote from: Pudding on July 10, 2020, 07:21:34 pm ---
--- 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.
--- End quote ---
Interesting.. I wasn’t aware some high-end sports cats had such a short lifespan, don’t get me wrong I knew that they didn’t last forever but a year seems mental.. especially for the price people pay for them too.
pudding:
Tell me about it. The APR DP with 'GESI' cat (iirc) cost me £750 3 or 4 years ago!
I get my MOT done at the local dealer so there's no rule bending with those guys. I actually want them to find stuff to fix as it gives me something to do :grin:
Anyway, first year with the APR it passed but the VW tech said he had to drive it hard for 10 mins to get the cat hot enough to pass. It failed on the first attempt.
Second year it just flat out wouldn't pass. CO spec is 0.01%. Can't remember the outer limit for a pass but the APR cat when roasting hot only managed 0.1%. 10 times worse than OEM!
Powervalve Nige:
The BCS Powervalve washcoat provides 0.00% on the Co both fast idle and natural idle and 4ppm (parts per million) on the Hydrocarbons (pass is less than 200 ppm - OEM reading is 1 ppm)
Get the data before you pay ;-)
Cheers
Nige
pudding:
Impressive :happy2:
Are all your systems 3" or is there a 2.5" option?
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