Ignitions and Electrical Ignition Boxes and Components

Racedom

Ignition Upgrade Kit

$749.00

SKU: RX8_ign_kit

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Racedom RX8_ign_kit is a plug-and-play ignition upgrade kit designed for the Mazda RX8.

This kit features four MSD IGN-1A smart coils, which produce a hotter spark while consuming less power.
Show original supplier description
The Racedom Mazda RX8 MSD Smart Coils Ignition Kit is a comprehensive upgrade designed to enhance the ignition system of the Mazda RX8's Renesis rotary engine. This kit aims to provide the most potent aftermarket ignition coil solution available. At its core, the kit utilizes four MSD IGN-1A smart coils. A key benefit is their efficiency; they produce a hotter spark while drawing less power from the vehicle's electrical system, reducing the demand on the alternator and battery. The kit also includes custom-tailored 8.5mm MSD Super Conductor spark plug wires, designed with extremely low resistance and a special core to effectively suppress electromagnetic interference (EMI), preventing it from disrupting other electronic components. These wires feature a durable silicone and synthetic blend outer cover resistant to heat, abrasion, and tears. The harness allows for a straightforward installation, connecting to the vehicle's ECU outputs. The MSD coils themselves feature built-in ignitors compatible with various aftermarket ECUs, including Holley EFI, and can operate up to 17 volts, making them suitable for both 12-volt and 16-volt systems. Mounting holes are elongated to facilitate direct replacement of factory LS coils or to mount in the factory RX8 ignition coil position, with an optional mounting bracket available. Installation of this kit involves removing the old ignition coils and plug wires. Specific wiring instructions are provided, detailing connections for coil trigger signals, grounds, and positive battery power, recommending appropriate gauge wiring and relay installation for optimal performance and safety. The manual also details how to determine and set the correct dwell time based on engine power output per cubic inch for optimal performance across different driving applications, from street use to drag racing.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandRacedom
Part NumberRX8_ign_kit
CategoryIgnitions and Electrical

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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