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decat 1.9 cdti 150

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  1. Astra H
    Hello! I’m looking to decat my car, already got a straight pipe cat back, but am looking to remove the cat, not the pre-cat, but the one under the car. Does this need a remap or can I just swap it with a decat pipe and have no issues? Guessing it’ll be an issue when it comes to mot time?
  2. Astra H
    IV had my astra about a month and wanting to decat it, just waiting to know what type to get the more curved one with the lamb sensor hole in or the more straight pipe without the lamb sensor hole in or doesn't it matter, I have the 2008 Sri 1.9 cdti 16v 150
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