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  1. P

    Speed Engineering LTs

    Looking at getting Black Bear EFIlive and a set of long tube headers for my 03 4wd Yukon with a 5.3. Is there any fitment issues on 4wd yukons/tahoes with their headers or y pipe?
  2. P

    Lets talk mufflers

    Spintech 3000, 6000, or 9000.

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