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  1. Focus RS Performance
    Is there anywhere to buy pre-gapped motorcraft plugs for the RS? I very recently replaced mine in the middle of tuning my RS as I heard the factory motorcraft plugs are typically ~.030 and they were. I gapped the new ones as best I could (to .026 with a cheap round gapping tool)...they’re...
  2. Focus RS Discussions
    This thread is to help those of us that only have access to 91 octane or below at the pump. I am starting a FAQ related to how we can get the most performance. 1.) What is the BEST octane booster to lvl up from 91 to 93. Price does not matter for #1. If possible, post links to purchase the...
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