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  1. #1
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    EFI. Tuner chip Magnum tuning

    I have a 1987 merc laser XRi 220 efi. 2.4
    i jus picked this up on a boat I purchased has land&Sea heads and nose cone with five blade maxis 23p. Prop

    i see Magnum tuning makes a Magnum Dyno-boost boat performance chip for this and other model merc engines. Has anyone tried these Before and is it worth messing with or leave it alone?????

    thanks

  2. #2
    Join Date
    Apr 2001
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    Western Pennsylvania
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    What are their claims, but sound to good to be true? Never heard of them... got any links to them?
    http://www.stvowners.com

    Checkmate 2002 Convincor 270 496 MAG-HO

    2003 Cougar 22MTR w/300xs SOLD
    90 21Skater w/300xs - sold
    98 STV Euroski w/280 - sold


    2006 Trailblazer SS 6.0l 395hp

  3. #3
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    Mar 2009
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    Saint Lucie Florida
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    They are a scam, go with a real tuner like simon performance. just go on amazon and look at the reviews.

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