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Performance Upgrades - Maintenance - Modifications - Problem Solving - Off-Road - Street Trucks. Covering the Explorer, ST, Sport, Lincoln Aviator, Sport Trac, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Aerostar. Featuring H.I. - Human Intelligence.
I've had the Splitfire wires for some time now and feel the it made a difference over the stock wires. But then I think any good set of wires would make a difference over the stock ones. As for the plugs, I don't know. I'm running the Bosch Platinums+4 and like them enough to replace them with the same when the time comes.
I ask myself, why splitfire plugs? How many sparks are you gonna get? 1, right? I have had good luck with the platium plugs. I agree about the wires, any good quality wire will do. Stock wires don't seem to last beyond 2 years.