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Thread: 1.9 CDTI Exhausts?

  
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    1.9 CDTI Exhausts?

    What have people put on there Diesels? Ive seen the miltek exhaust, but there is no way on this planet i will ever pay £800 quid. Seems like a massively Expensive.

    So what have other people use as a alternative?

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    Sri oval tip, 1 tip one on either side, job done
    Astra sold ... replaced with a Skoda ... soon to be replaced with another Vauxhall

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    Was looing for that kind of tip, but after a s/s cat back =/

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    afew guys over on AON are running some nice after market exhausts

    you can get a scorpion one on ebay for about the £300 mark and also mongoose and magnex do one for the 1.9cdti about the 300-400 mark
    Just because it smokes like a taxi doesnt mean it goes like one

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    Righto I'll get looking into then mate, thanks

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    A performance exhaust for a diesel is pointless, as all the back pressure is created in the manifold. You can actually take the whole exhaust off from the cat back, and when you fire the car up it will sound like its still got it on (apart from a bit of a weak blow when it initially starts)

    If you do need an exhaust tail tip sticking out the back just get one of the cheap backboxes off Ebay as it won't make any difference to the sound (as it won't make any)

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    Quote Originally Posted by 200TI View Post
    A performance exhaust for a diesel is pointless, as all the back pressure is created in the manifold. You can actually take the whole exhaust off from the cat back, and when you fire the car up it will sound like its still got it on (apart from a bit of a weak blow when it initially starts)

    If you do need an exhaust tail tip sticking out the back just get one of the cheap backboxes off Ebay as it won't make any difference to the sound (as it won't make any)
    This is the impression I was under... a pointless mod unless you want it for aesthetics isn't it?
    'Luctor Et Emergo'

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    I'm confused - unless the turbo is not in the exhaust system (?), then surely any reduction in back pressure by changing the exhaust post-turbo is a good thing for performance? Why is it different for a diesel vs petrol turbo engine?

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    You can whack a VXR exhaust straight on if you wish I believe the center section and back box are straight swap, or go for one of the other afore mentioned systems. The best thing is to change the downpipe as this does make a difference apparently, quite a few rolling roaded with it on and it can make up to 15bhp difference on an otherwise standard car.

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    Quote Originally Posted by nry View Post
    I'm confused - unless the turbo is not in the exhaust system (?), then surely any reduction in back pressure by changing the exhaust post-turbo is a good thing for performance? Why is it different for a diesel vs petrol turbo engine?
    I'm not saying that's wrong, I was just always under the impression that an exhaust change on a diesel would make no change to performance. I had it explained to me once but I can't remember it at all!
    'Luctor Et Emergo'

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