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  1. S

    spark knock or not ??

    Too much of a puzzler for my brain so thought I'd solicit some real help to try and put this annoyance to rest: While driving on the freeway in 6th gear at 70-80 mph in 90-95 degree weather I get this "rattle" sound that, to me , sounds just...
  2. S

    Is tuning necessary with the following mods:

    Hi, First post in these forums and not being familiar with these cars (i just bought my ms3 a month ago for a dd and it has 2400 miles on it now) I would like some guidance so I don't make an expensive mistake. I have just finished installing a Cobb SRI, Corksport race pipe and catback. Do I...
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