Thread: Speartech LS 58x Standalone Harness (Manual)
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Old 06-16-2016, 09:40 AM
badazz81z28 badazz81z28 is offline
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I'm not familiar with spear techs harnesses. Do they come with all relays and fuses to be a complete stand alone harness? I need it for an ls7, is it cable or wire throttle body? Stock tune on the ecm?