D2 S8 - Big end gone?

[dhrf]

I remove the cats, and put 2 2.5inch tubes all the way to the rear silencer.

I did it in diferent steps, first the cats, 1 was tottaly bloked, the car run better and fuel was half it use to eat.......so 2 big tubes all the way to the rear.

A lot of noise , much more fuel economy, and run like it have 40hp more.










a8 97 4.2 abz

[RICKY D]

This is now rectified. My mechanic sliced open the exhaust and found a solidified peice of cat internal had broken lose and lodged itself around the rear of the cat perfectly blocking the flow of gases...the car would not even tick over!

After welding back up and resetting the fault code it seems to be running very nicely again. He said there should still be enough filament left to not trigger the EML and after 6 weeks of driving It hasn't yet.

Whilst it was off the road I bought the wife a brand new Smart forfour Edition Black. My neighbours laugh as we have the biggest and smallest cars now

[Architex_mA8tey]

Originally Posted by RICKY D

This is now rectified. My mechanic sliced open the exhaust and found a solidified peice of cat internal had broken lose and lodged itself around the rear of the cat perfectly blocking the flow of gases...the car would not even tick over!

After welding back up and resetting the fault code it seems to be running very nicely again. He said there should still be enough filament left to not trigger the EML and after 6 weeks of driving It hasn't yet.

Whilst it was off the road I bought the wife a brand new Smart forfour Edition Black. My neighbours laugh as we have the biggest and smallest cars now

Great result!
now get yourself along to this in 2 weeks !! --->

http://forum.a8parts.co.uk/showthread.php?t=12959

[MikkiJayne]

My driver's side cat just started rattling yesterday after I caught it on a rock in the road

Luckily I can pinch one off the FE for the meet but I think when I get time I'll probably gut both of them and weld a straight piece of pipe inside the cat housing so it looks stock

Has anyone got a rattly or broken passenger side cat that I can cut up? That one is still fine on mine so no point damaging it if I can avoid it

[RICKY D]

It was my drivers side cat that also gave me grief. Similar to the upright saga I/you have, second hand cats never seem to turn up!

If I keep the S8, I'm taking off my good cat and the slightly butchered one too and replacing them with sports cats and a full exhaust system.

[Goran]

Originally Posted by MikkiJayne

My driver's side cat just started rattling yesterday after I caught it on a rock in the road

Luckily I can pinch one off the FE for the meet but I think when I get time I'll probably gut both of them and weld a straight piece of pipe inside the cat housing so it looks stock

Has anyone got a rattly or broken passenger side cat that I can cut up? That one is still fine on mine so no point damaging it if I can avoid it

You might consider selling it / both.
I kept mine for a year, and only just last week started ringing round the cat recyclers to see how much I could get.
Finally settled on this place because it was close by
http://www.fjchurch.co.uk/

They gave me £225 paid into my account, result!

Or at least before you break them up, ask your local cat recycler would they be happy to pay you for just the ceramic bits, since that's what they extract anyway they bin the metal housing from what I saw.

[Adrian E]

Worth noting that gutted cats on a petrol car should fail an MOT emissions test as you'll be pumping hydrocarbons and carbon monoxide out the back.....

[MikkiJayne]

Duly noted

My local recycler won't take just the ceramic for some reason, only the complete unit. Possibly they send them elsewhere to be opened up. They certainly don't pay anything like that much for them so I may do some further investigation

[RICKY D]

Originally Posted by Goran

They gave me £225 paid into my account, result!

That seems pretty decent.

Did they pay out based on what car model you have from a list price or what was actually left inside it the cat?

[Goran]

Originally Posted by MikkiJayne

Duly noted

My local recycler won't take just the ceramic for some reason, only the complete unit. Possibly they send them elsewhere to be opened up. They certainly don't pay anything like that much for them so I may do some further investigation

If you don't find a better price ring up the FJ Church people they may do freepost to get the cats off you.

Originally Posted by RICKY D

That seems pretty decent.

Did they pay out based on what car model you have from a list price or what was actually left inside it the cat?

It looks like they have a catalogue for cat prices, they wanted the part number cast into the cats. Only if they cant find the part number do they do some kind of analysis of the platinum content.
It seems they found both my cats in the system, I stood there when the guy was looking for them and he only took a minute and did not take them anywhere for the test.

One of my cats was broken up badly inside, in fact several pieces had escaped, but they did not reduce the price for this, strange.


This really makes it worth getting decent replacement cats such as HJS, I paid around £650 for the pair, deducting the money recovered from the stock cats I effectively paid around £425 for two very high quality TUV certified cats.