Ignitions and Electrical Wiring Harnesses

BennettBuilt Performance

RX8-LS2-Ignition-Swap-Kit

$310.00

SKU: RX8-LS2-IGNITION-SWAP-KIT

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

Moderate — 2–4 hours

Overview

The BennettBuilt Performance RX8-LS2-Ignition-Swap-Kit is an ignition upgrade kit designed for the Mazda RX8. This kit replaces weak OEM ignition parts with D585 ignition coils, a custom billet polished aluminum bracket and hardware, BennettBuilt Elite series spark plug wires, and an LS to RX8 wire harness adapter. The upgrade aims to provide a hotter spark, leading to improved fuel economy, better performance, a cleaner burning engine, and faster starts.
Show original supplier description
The BennettBuilt Performance RX8-LS2-Ignition-Swap-Kit offers a robust solution to the known weaknesses of the original OEM ignition components in the Mazda RX8. This comprehensive kit includes high-performance D585 Ignition coils, a custom-fabricated billet polished aluminum bracket with all necessary hardware for secure mounting, and premium BennettBuilt Elite series spark plug wires. Completing the package is a specialized LS to RX8 wire harness adapter, ensuring seamless integration. By upgrading to this kit, you can expect a significantly hotter spark from your ignition system. This enhanced spark directly contributes to several performance benefits, including improved fuel economy, increased overall performance, a more complete and cleaner engine burn, and quicker starting times. Crucially for boosted applications, this hotter spark will not be extinguished by boost pressure, effectively eliminating misfires that often plague turbocharged or supercharged RX8s with stock ignition systems. OEM ignition components are known to fail relatively early, sometimes within 20,000 miles, necessitating frequent and expensive replacements. The BennettBuilt Performance kit provides a durable, one-time solution that saves money and reduces the recurring hassle of ignition system failures. For optimal performance from this coil conversion, it is recommended to adjust the ignition coil dwell settings, ideally using a tuning device such as a Cobb access port or a similar tuning method. Additionally, it is strongly advised to replace the spark plugs concurrently with this ignition upgrade. The required spark plugs are two NGK 6700 and two NGK 6701, with a critical note to ensure they are installed in the correct locations, as indicated by the 'T' or 'L' markings.

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

BrandBennettBuilt Performance
Part NumberRX8-LS2-IGNITION-SWAP-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.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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