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Thread: exhaust modifications?

  1. 6th December 2009, 01:58 PM #1
    CSK
    CSK is offline Fossicker
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    exhaust modifications?

    Hi.

    I have sourced a set of new Pacemaker extractors for my 1990 3.9L V8.

    Can anyone recommend any particular exhaust sizes or mufflers that would suit the application. I would like a bit more of a V8 sound but nothing obscene that would attract unwanted attention.

    Single or twin pipes?

    Could I expect any performance gains or better fuel economy?

    Would I need to get the engine re-tuned after the new exhaust?


    Cheers.
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  2. 7th December 2009, 08:32 AM #2
    Tombie Guest
    Single (better torque)

    2 1/2" is ample for a 3.9L and not too obtrusive noise wise.
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  3. 7th December 2009, 04:19 PM #3
    CSK
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    Thanks. What size is the standard 1990 3.9L exhaust?
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  4. 7th December 2009, 07:34 PM #4
    PhilipA
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    As I said to you a couple of days ago 2.25 inches.
    Regards Philip A
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