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Thread: Stainless exhaust.

  1. #1
    Regular Member sdemps's Avatar
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    Default Stainless exhaust.

    While searching for info on my CDTi 150 online i found a video on you tube of an astra CDTi. The exhaust note sounded brilliant, you could here the wastegate chirping when it backed off. How??? I'm running a K and N panel filter with air box mod, spider tuning box, de-cat and twin tail pipes with no silencers. It sound nice but was hoping for the chirp. Any ideas??

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    Regular Member Danwells72's Avatar
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    Vehicle : Vectra

    Trim : Sri

    Engine : 1.9 cdti 150

    Year : 2004

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    Quote Originally Posted by sdemps View Post
    While searching for info on my CDTi 150 online i found a video on you tube of an astra CDTi. The exhaust note sounded brilliant, you could here the wastegate chirping when it backed off. How??? I'm running a K and N panel filter with air box mod, spider tuning box, de-cat and twin tail pipes with no silencers. It sound nice but was hoping for the chirp. Any ideas??
    Straight through is the only thing i can suggest, or you can have a whole new air box. I have a completely new air filter on mine and you can really hear the turbo going

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    Regular Member sdemps's Avatar
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    I can hear the turbo spool nicely and a grunt but was hoping for the chirp! Does anyone know removing the pre-cat would do this for me?

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    Regular Member Gsi3.2's Avatar
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    you need to speak with 'spoons'... his old vectra CDTi had just that 'chirp' when you back off......

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