Read a story in JP magazine about installing Davis United Ignition Parts on a 4cyl TJ and gaining like 5 to 10 HP. anyone try these parts ? think it was coil pack, cap rotor, wires. which makes enough spark that you have to open up plug gap.
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EDIT oops - not Davis United but Davis Unified Ign.. sorry
thanks
P scott
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EDIT oops - not Davis United but Davis Unified Ign.. sorry
thanks
P scott