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[mark.adams]

I just bought one of these http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=200461197117&ssPageName=STRK:MEWNX:IT as the photo on the listing clearly shows a pre-cat fitted, however, thats not what has arrived, the 'pre-cat' is an enlarged piece of tubing, doesn't look anything like the pre-caton my current exhaust, have i been diddled?

[TheBoy]

Whats wrong with the old cat?

[mark.adams]

It's collapsed, rattling like a rattly thing, occasionally has an attractive eggy smell too

[TheBoy]

Unusual.

Id be more inclined to get a 2nd hand genuine one than a cheap, nasty new pattern....

[mark.adams]

That was a second hand one, lasted me a good six months or so though, Vx price for a new one was £800....

[Marks DTM Calib]

Can you post a picture of the replacement as not all cats look the same

[mark.adams]

Just getting the wife to take one as the parts co. asked the same question, what would be the pre-cat is an oversized tube, not 'cat shaped' at all.

[mark.adams]

Can't upload a photo as all the photo sharing sites are blocked here at work..
However, sent photo to exhaust co. they said it is a pre-cat fitted just a smaller aftermarket version so i'll see how it works/sounds when fitted this weekend

[aaronjb]

You could always feed a bit of curtain wire/twin and earth or similar down the tube - if it won't go through that section it's a CAT, if it will, it's probably just a resonator..

[mark.adams]

Tried that last night as that was one of my thoughts, curtain wire won't go through it. So i guess it must be a pre-cat after all, only time will tell whether its any good and if the engine management system throws any errors up

[mark.adams]

Okay, new cat fitted, blew like a cheap tart with the gasket they supplied, so took it back off and fitted my old one, perfick... no emissions light, no rattle, sounds fine, goes like a rocket, very happy....