MSD 8.5mm Super Conductor HT Lead Set for RX-8 BHR Style D585 Coil Kit

£79.99 (inc VAT)


Earn up to 80 ER Points.


These custom made MSD leads are hand built in house and are designed as a replacement Lead set for Black Halo Racing Ignition Coils and the various copies that have sprouted up over the years. Please note these leads will fit all D585 coils however the lengths haver been made for use with Black Halo Racing style brackets. If your running a custom bracket with a different configuration then these leads may not fit.

Each set of leads are carefully made and tested prior to packing and shipping out.

Please note that these Leads will only work Black Halo Racing original and copy style brackets due differences in mounting locations if your building your own bracket they may not be compatible.

Each lead is also labeled with its Spark plug location to make installing and reinstalling them when changing spark plugs in future nice and easy.

The MSD 8.5 mm Super Conductor wire is the performance wire engineered from the inside out, the 8.5mm offers everything you have ever wanted in a wire; incredibly low resistance without electronic interference! In a single 12 In. length of Super Conductor wire there is only 40 to 50 ohms of resistance! That is the lowest resistance of any helically wound wire. To accomplish this, MSD use a copper alloy conductor due to it’s great voltage carrying capabilities. The low resistance results in less loss of spark energy so more reaches the spark plug. The conductor is wound extremely tight around a special center core. So tight, that there is over 40 Ft. of conductor wrapped into a single foot of plug wire. This winding procedure, combined with a ferro-magnetic impregnated center core, produces an extremely effective electro magnetic interference (EMI) choke.

  • Copper alloy conductor has a resistance value of less than 50 ohms per foot for superior spark
  • Ferro-magnetic impregnated core creates an effective EMI choke
  • Forty feet of conductor is wound into a single foot of wire for high EMI suppression
  • Conductor core features Dupont Kevlar material for increased tensile strength
  • Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion
  • Stainless steel terminals feature dual crimp tabs to grip wire conductor and outer jacket separately

These MSD HT Leads are made to order right here at Essex Rotary HQ, from genuine MSD components. Available in Red or Black cable options (select your preferred colour from the drop down menu before hitting the “add to cart” button.

MSD Leads can also help prevent moisture ingress at the spark plug tip that will lead to corrosion of the spark plug tips causing poor ignition and bad engine running characteristics, It can also increase the risk of flooding and damaging your catalytic converter.
Please see the image in the gallery for atypical example of the issues we encounter due to original or poor quality (pattern parts) Ht leads being installed instead of high quality HT Leads.

Custom lengths and configurations available upon request.


Additional information


2003-2008 Mazda RX-8*
2008-2013 Maxda RX-8*

*Not compatible with stock air box system.


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