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Thread: Headers / Extractors for 3.9 efi ?

  1. 17th January 2012, 09:26 AM #1
    Greenie
    Greenie is offline Fossicker
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    Headers / Extractors for 3.9 efi ?

    Hello to all, I having been looking around to find some headers for a new free flow exhaust system for my 90 RR 3.9 efi anyone got any clues at this stage I have only been able to find extractors for the 3.5 motor and they can not tell me if they would fit?
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  2. 17th January 2012, 09:44 AM #2
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    BigJon
    BigJon is offline ForumSage
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    3.5 ones will fit but they are of questionable value. I have a set on mine but they are old and leaky. One day I will get around to refitting the standard manifolds, which flow quite well.
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  3. 17th January 2012, 04:46 PM #3
    Pierre
    Pierre is offline Wizard Silver Subscriber
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    I'm with BJ - change the noise, but have marginal effect on power. All other things equal, about 5 kW. I'd spend the dough on a really well engineered system.

    Pete
    Dizzie, 08 D3 TDV6 SE
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