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unklesammy
09-06-2009, 21:07
Hi,

My cat on my williams 3 is making very nasty rattling noises, so I assume it's cattled. I'm thinking about just putting a pipe in, instead of spending loads of cash on a new one.

Anyone know if getting rid of the cat will be bad for the performance etc etc?

Also, any ideas where I might get a pipe from if I decide to do that?

Cheers
Sammy

busterhymes
09-06-2009, 21:53
will improve performance so im lead to believe, on the down side u would still need a cat for MOT purposes, decats seem to come up on here regularly :)

LEIGH-ANNE
10-06-2009, 09:41
Where are u based?

Wobba
10-06-2009, 09:57
Sure it's not just the CAT heat shield?

Purple
10-06-2009, 11:08
I swapped in a mid-muffler instead of a straight pipe. I tried the pipe and it was was too loud for me, and loses some low-end torque on my standard F7R engine. The straight pipe might work better on modded F7R with higher output.

unklesammy
10-06-2009, 11:57
Where are u based? Newcastle upon Tyne

unklesammy
10-06-2009, 11:58
Sure it's not just the CAT heat shield? I think it's the inner workings, the outer casing seems in tacked. Is there anyway of checking this?

Wobba
10-06-2009, 12:44
Only way to be sure is take it off and rattle it about!

The insides do go though. Don't chuck it out yet, can be a neat way to trick MOT'rs into thinking you have a CAT fitted when its actually hollow hehe.

LEIGH-ANNE
11-06-2009, 13:50
Wobbas got a good point there! Which is why i asked ur location...

Slap a de-cat on the car, and switch it bk to the CAT for the mot... If u didnt have one, u would have to ask around from people here to borrow one for the mot if u got rid of urs, but keep it! dont throw it, and use it dor mot porposes :D