Exhaust de-cat question

[s,one]

having removed my cats with a standard backbox will the baffles eventually blow out?. I ask because I have a minor vibration and before I dismantle the car in search of a source I wondered if the vibration could actually be in the backbox itself.

Cheers

Steve

[jesfirth]

dunno but mines been decatted fro a while with no problems yet

[s,one]

Had it checked and baffles are now buggered ,just pops and bangs even more now.

Cheers

Steve

[jesfirth]

excellent we should all do it

[pilmar]

I decatted mine a while ago and it hasn't affected the back box. I want to back to normal Cat pipes but one of them is knackered so has anyone got a 4.2 Cat pipe that I could buy from them. I'll also have two good de-cat pipes on offer aswell.

[alderley]

The rear box surprisingly has no baffles. Itis actually a 'straight through' design but with an S-bend. There is a central baffle to separate the left and right side of the tail box but not a baffle gas has to flow through. Silencing occurs because noise escapes through perforations into steel gauze surrounded by glass fibre wadding. If the pipe itself has snapped you could get strange noises (and obstruction to gas flow). Someone with a body saw (for cars not people) and a welder could open the box and weld things back together - if the tail box is faulty..
However do make sure nothing else is loose/faulty first.

[s,one]

alderley said:

The rear box surprisingly has no baffles. Itis actually a 'straight through' design but with an S-bend. There is a central baffle to separate the left and right side of the tail box but not a baffle gas has to flow through. Silencing occurs because noise escapes through perforations into steel gauze surrounded by glass fibre wadding. If the pipe itself has snapped you could get strange noises (and obstruction to gas flow). Someone with a body saw (for cars not people) and a welder could open the box and weld things back together - if the tail box is faulty.. However do make sure nothing else is loose/faulty first.

Thanks for the response I wondered is this repair a viable option, because come mot time I will need the back box on again I assume?. Option is I suppose is to put sports pipes on ,so which is the cheaper option?. I am quite happy with the sound the car makes at the moment but wouldn't mind if it was a little louder I suppose it's down to cost.

Cheers

Steve