Hmm what do you think - Page 2

stamford · 28-03-11, 01:35 PM

A 180 running OE manis with a decat with lambda sensor fitted and MIL kit will pass the MOT. If they look for the engine light still being illuminated after a few seconds then they will know a decat has been done. However if all seems okay MIL wise and no emissions issues then I can see no reason for looking any further. Never had issues with mine for last couple of MOTs.

lawrence-zs180 · 28-03-11, 04:07 PM

Those vosa check points are deff becoming more often.. got caught up in one on sat morning, they where mainly looking for stuff that was 'kit builds' to check for road legality etc.. well thats what the guy said and he looked over mine. She got through with the pre cat and decat combo fine... although he did spot it after and said 'naughty naughty' lol. Never knew they could stop you driving the car there and then though but then I suppose if the car is unsafe etc its only right. A nice 30 mins added to my already long journey to work!

haGGard · 28-03-11, 09:05 PM

Yea im aware the car will still pass emmisions with a decat and precat, i was wondering whether these 'new' legislations would mean that in the future the car would need all the cats it had from the factory, whether it can pass with just a precat or not

Jay-ZS+ · 29-03-11, 06:43 AM

Quote:

Originally Posted by haGGard

Yea im aware the car will still pass emmisions with a decat and precat, i was wondering whether these 'new' legislations would mean that in the future the car would need all the cats it had from the factory, whether it can pass with just a precat or not

The way round that would be to knock the internals out of a cat, would still pass emissions and have a cat fitted but would give the power gains of a decat

stamford · 29-03-11, 08:25 AM

Quote:

Originally Posted by Jay-ZS+

The way round that would be to knock the internals out of a cat, would still pass emissions and have a cat fitted but would give the power gains of a decat

One good reason to retain the OE cat, I still have mine in the garage.

Boot Hill Bandit · 29-03-11, 08:36 AM

Or even to have a straight exhaust made up and weld the box over the top. Straight through performance but looks of an OE cat...........

Mr ZS180 · 29-03-11, 10:54 AM

Quote:

Originally Posted by Jay-ZS+

The way round that would be to knock the internals out of a cat, would still pass emissions and have a cat fitted but would give the power gains of a decat

Would act as a resonator box then as well and make the exhaust sound even better. Thats a damn good idea. I need a standard cat someone please!!!!!!

talkingcars · 29-03-11, 05:19 PM

Quote:

Originally Posted by stamford

One good reason to retain the OE cat, I still have mine in the garage.

That's what I did, the powerflow guy even welded a new tail section on the cat so it could fit to the new exhaust.

p_b82 · 30-03-11, 01:22 PM

Hmm, i wonder if they are going to force this on the diesels too...

If yes just as well i kept my cat - gutting time will commence... the dowside is that they are not as 'good' as a proper decat on the dervs cos the expansion etc....

might look to get my cat surround welded on the outside of my decat if that is the case.