DE CAT

[John st1]

I am thinking of de catting my car.. 

 

I have got a uk 300 I know that it has got two cats but I can only see one sensor in the cat but I can not see if there is one in the downpipe..   Does any one know if there is one in the downpipe? 

 

And if I was to change both the cats is it going to be to loud?

[graeme_stuart]

Think it has 2 John.[^o)]

[insane clown]

i wouldn't worry about the noise, it only increases a little but the other benifits are well worth it[]

and from what i can remember you can leave the centre on and pass the mot still, i'm sure i'll be corrected otherwise,

[John st1]

I only worry about the noise as that we are thinking of starting a family and I dont want it to be to loud.. We do not have an mot over here so I would like to get them both off ... 

[Manx minx]

I wouldn't worry about the noise even if you start a family as kids that are brought up sleeping with noise can sleep through most noise anyway, I could have blown up the house when my daughter was a baby and she still wouldn't have woke up.

RE the decat I know John was looking into this and he was told that one decat would be relatively easy but the one with the sensor would be more difficult however it can still be done. So good luck if you get it done and let us know how you get on with the decat if you get it done.

Nix

[Dave K]

The noise will be reflected by the type of back box you have, some people have full decat's and they don’t sound much louder than standard.

Does yours have a prodrive back box?

From what I have found you have a 02 sensor in manifold, EGT probe in up pipe and an other 02 sensor after the 3rd cat.

Cat in up pipe, down pipe & centre pipe.

You will either need an ecutek remap to take full advantage of the decat and at the same time disable the CEL error or fit a CEL fix.

Hope this helps.

[John st1]

Yes I do have a prodrive back box.

All the parts that I have been looking at are all from scoobyworld and they are as follows

Afterburner centre section £99.99

Afterburner cat pipe £105.00

Afterburner de-cat downpipe £205.00

Afterburner up pipe £ 135.00

The car at the mo is running at about 250bhp and I would like to get it to about 300bhp seeing as that what most people think the 300 means on my car.  I know that just putting the exhaust part on will not get me there but it all helps..

[andrew_field]

It might also be worth looking at some ported and wrapped headers.

[Dave K]

Hey Andy, how's it going? You still got the scoobysport backbox on the car?

John I have a few bits which might interest you as I am going full 3” system with my new setup, give me a call if you want 498476.

As Andy said ported headers will help, but don’t forget you will need to lag the downpipe as well to keep under bonnet heat down.

[insane clown]

babies love the burble, tests show it actualy sends them to sleep!......it's a soothing din.

as mentioned i have full decat with tsl 4" b/box..........not a problem, very comfortable imho. i had H&S 4.5" jap style before and had to change it, you could hear it for 2 miles nearly when i went to work and the missus timed me up to where she couldn't hear it anymore, she can still hear me coming but doesn't sound like 50 harley davidsons coming this time[]