Looking for the most powerful PCM-tuning tool on the market? Unlike typical off-the-shelf programmers the DiabloSport II by SLP comes armed with an ultra-hot custom tune developed specifically for your vehicle application. These DiabloSport II hand-held programmers from SLP feature exclusive SLP custom power tuning. They include user-adjustable features, trim air/fuel ratio, and spark advance, and they eliminate power enrichment delay. They also function as scan tools to read engine diagnostic codes and engine outputs.