Wht/Gray15
Well-Known Member
- Thread starter
- #1
Not S550 but a 2011 Coyote, my question is are the Accel HP Copper plugs ok to use on my vehicle. Im aware they wont last as long (not my DD) but will Copper damage my car, I read somewhere there not good for Coil On Plugs. Thank You guys for your help. FYI im N/A with pump 91 gas and full bolt ons, plugs will be gapped to 45 and stock heat range.
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