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I like to stick with Ford Motorcraft, so the SP550X it is, but can anyone confirm for me the manufacturer's gap and has anyone had any success in shortening it?? Google has a variety of answers on the SP550x "factory gap", but since my Mustangs plugs always come plus .30, Im guessing the same for these?
And on the Mustang, I'd bring it down to .27 and had zero problems. I see some online shops advertising a .29 for the 2.0 engine. But I'd like to hear from people who've done it with the Badlands. Anyone here do this or have you replaced your plugs and can offer some insight on your experience?
And on the Mustang, I'd bring it down to .27 and had zero problems. I see some online shops advertising a .29 for the 2.0 engine. But I'd like to hear from people who've done it with the Badlands. Anyone here do this or have you replaced your plugs and can offer some insight on your experience?
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