I recently replaced my wires with a set of Jacob's Energy Wires, custom cut for my 190E. They are 8.5mm wires and are supposedly better insulated than the OE wiring.
http://www.jacobselectronics.com/Wires.htm
Hype or Real? My performance is not terribly different...what do y'all think?
- John
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John J. Meadows
'83 300D 260k mi.
'85 190E 2.3L 99k mi.