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Author: Subject: no back box and mot
dave r

posted on 3/1/18 at 02:07 PM Reply With Quote
no back box and mot

What's the legalities of not having a back box on a tin top?
It a turbo diesel 1.7 Corsa, and cheapest I can find is over 100 quid..... which to me sounds a lot

If I fabricate , a straight through pipe, will it pass the mot. It isn't loud, even with the pipe finishing under the car, won't be any louder with it out the back

Thoughts?





I'd love to give my imaginary friend a great big hug,

but this jacket makes it impossible.

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joneh

posted on 3/1/18 at 02:37 PM Reply With Quote
Purely guessing, but it may have an effect on the emissions with the reduced silencer pressure.
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loggyboy

posted on 3/1/18 at 02:48 PM Reply With Quote
No reason it will fail for the sake its just missing, as long as its not overly loud (emissions shouldn't be affected, otherwise very performance exhaust would fail)





Mistral Motorsport

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davidimurray

posted on 3/1/18 at 03:30 PM Reply With Quote
According to this website - http://www.motester.co.uk/ mot-general-information/mot-information-for-motorists/mot-test-checks-list-continued#exhaust

Part of the system missing or excessively deteriorated

So may depend on how hot your examiner is.





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gremlin1234

posted on 3/1/18 at 04:53 PM Reply With Quote
quote:
Originally posted by davidimurray
According to this website - http://www.motester.co.uk/ mot-general-information/mot-information-for-motorists/mot-test-checks-list-continued#exhaust

Part of the system missing or excessively deteriorated

So may depend on how hot your examiner is.

but that site is just a summary.
the real testers manual has reasons for rejection as

1. An exhaust system not adequately supported.

2. A major leak of exhaust gases from any part of the system.

3. A catalytic converter or particulate filter missing where one was fitted as standard.

4. A silencer in such condition, or of such a type, that the noise emitted from the vehicle is clearly unreasonably above the level expected from a similar vehicle with a standard silencer in average condition.

5. Exhaust fumes entering the driver’s or passenger area. (class 5 only)

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russbost

posted on 3/1/18 at 04:59 PM Reply With Quote
Providing you make a decent job of it it should pass unless your tester is an idiot!





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