Sport Cat on Mongoose Exhaust

[TREVCOS]

Hi guys, I've got a Mongoose exhaust and bought a sport cat for it. Does anyone know where it needs to sit on the exhaust so that it doesn't foul anything? Anyone got any pics of who can do me some measurements so I can give them to a welder would be much appreciated.

[Simon T]

This is a mongoose on mine

[Gavin E-Cos]

How much would this reduce emissions?

[mark shead]

How much would this reduce emissions?

Next to nothing but that’s all it needs to do if your car is mapped correctly. If your car is mapped poorly it won’t do a dam thing.
Get a Mot test to see what lambda its reading this will tell you if it will help.

Mark

[TREVCOS]

Will it definitely fail a test without this on, just by sight? Just wondering if I should just put it together as is without the cat, my car's 1996 by the way.

[James @ Auto Dynamix]

It should fail if one is not fitted, but really comes down to the tester.
Technically even though sports cats may pass the MOT scheme, they are not road legal, as changing any emission control parts from what the car was type approved with, is an offence, but its been a grey area for many years, they are starting to clamp down on it now with all the DPF/Decat issues we read about in the press.

[R5COS]

Where all the escos fitted with a cat as standard? Just wondering if all the early cars had them fitted too ?

[TREVCOS]

I think they all did, although I don't think the exhaust was exactly the same.

[bojensen]

I have a MagnaFlow 3" on my Mongoose. No problems for MOT.

http://www.magnaflow.com/products?partNumber=54959

[Simon T]

The mongoose one on my standard ST car used to go through with no bother - now it's a right faff, i'll be replacing it next year. Mines on the standard map and it fails unless the car is super hot.

Mongoose ones were type approved and marked so they are no different to fitting an non-OE one, although I don't think you can get them anymore.

[TREVCOS]

I bought my Sport Cat from GGR. Just need to get it put in. My exhaust hasn't got the flanges that one above has though, have they been added in when welding it in?

[Simon T]

Nope, that's how it came from new.

[TREVCOS]

Did it come from GGR?

[Simon T]

No mate, from demon tweeks from memory.

[bojensen]

I had a stainless Steel Expert to weld it on mine