Vehicle & Technical > Defender

Exhaust system blowing 300tdi

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davidlandy:
the exhaust front section on my motor has decided to blow a hole  - its the flexi bit with the braiding on.

mine is fitted with a cat and the section blowing is joined to it GRRRR

the cost of this section with a cat is £260, but its only £20 without!!!

can i replace it with the non cat straight thru system?   what are the implications for the EGR etc.......

thanks
dave

Ollie:
I'd be interested in the effects of removing the cat too 8)
I know there's probably a sensor mounted in the cat for regulation. If this sensor gets a 'null' reading, what's gonna happen :?:

Cheers.
Ollie.

davidlandy:
Dont think anybody knows the answer to this question on here!

hobbit:
One idea would be to cut the pipe and re weld back on leaving the cat in place, with new flexi

Kev

ChrisW:
David

I think you're problem will be the MOT, vehicles registered after August 1995 require a catalytic convertor to be fitted (I think!)

You could fit a straight through pipe but make sure you have got hold of a cat for mot time, if you know what I mean  :wink:  :wink:

Mine was registered prior to above date and does not have a cat so it is possible.

Not sure what this would do to the lambda/egr sensors - presumably as the gases haven't got to go through the cat then in theory the gases should be moving out a little faster and therefore the temp will be slightly lower?

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