Granatelli coil and wires
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Bullitt Member
Joined: April 3, 2011
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Granatelli coil and wires
Any good, anyone verify the HP claims of up to 18 more? I need to do my plugs soon and am going back to the Bosch Icon platinum +4 plugs I ran a few years back. Curious if this combo will improve gas mileage. 
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