Our shipping operations are suspended until April 13th to protect our staff. Details

Welcome to Flyin' Miata!

Magnecor 8.5mm spark plug wires (1990-00 engine)

Spark plug wires
Magnecor 8.5mm spark plug wires (1990-00 engine)
Lifetime warranty!

Availability: In stock



Quality plug wires with a stainless steel spiral wound core. Much higher quality than factory and a limited lifetime warranty.

8.5mm wires have 13% more conductor than 8mm for less voltage drop. Stock wires usually last 20,000-30,000 miles and are possibly the only weak link in the Miata drivetrain. No RF interference. Red in color.

Fits 1990-00 engines.

Additional Information

Additional Information

Part number M04-56085 1990-00
TÜV approval available No
Fits: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1999, 2000
Manufacturer Magnecor
Flyin' Miata exclusive No
Fits Exocet? Yes
Proposition 65 Warning: Cancer and reproductive harm
California emissions No

Customer Reviews 4 item(s)

Night and Day
The difference between these and stock is tremendous; I wish'd I'd've made the switch sooner!
Review by wimlawrence / (Posted on 3/5/2020)
Amazing product!
Amazing product. Old cables were causing a misfire at low RPM. Put these on along with new plugs instant ignition response performance.
Review by Toto / (Posted on 5/29/2019)
I definitely noticed an increase in response, I drift, and was getting a misfire at high RPMs, even with new coil and NGK wires, these fixed that issue for me.
Review by Nathan M Espinosa / (Posted on 4/28/2018)
I recommend these wires.
Love their wires, have used them for years in various applications. I live close to the factory in Michigan, great customer service!
Review by Abbynormal / (Posted on 9/9/2015)
Instructions for this part are not currently available online.