Does the Racing Coil Pro for FD3S work with the factory ECU?

No. HKS states that the Racing Coil Pro for FD3S is not compatible with the factory ECU. An ECU capable of independent ignition control, such as the HKS F-CON V Pro, is required, and wiring work is needed to connect it. No ECU is included, so budget for engine management and tuning first.

Which ECU can run this coil kit?

The kit needs an ECU that can drive the 13B-REW with independent ignition control, one coil per plug. HKS names its own F-CON V Pro as an example. Other standalone ECUs with enough independent ignition outputs may also work, so confirm the outputs of your ECU with your tuner before ordering.

What changes compared with the factory RX-7 ignition?

The factory FD3S uses a wasted spark layout. The HKS kit converts it to independent ignition with coils rated by HKS at about 1.4 times the stock secondary voltage. Power reaches the coils directly from the battery through a relay.

What is included in the kit?

HKS supplies four Super Fire Racing Coil Pro coils with a vehicle-specific bracket and wiring harness for the FD3S RX-7. The anodized bracket was tested by a third-party facility for rotary engine vibration. The ECU, spark plugs and tuning are not included and must be sourced separately.

Does HKS make this coil kit for other engines?

Yes. HKS offers Super Fire Racing Coil Pro kits for other engines, including the RB26DETT in the BNR34 Skyline GT-R and the 2JZ-GTE in the A80 Supra. Each kit uses a bracket and harness built for its own engine, so the FD3S kit does not transfer to other cars.

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Description

HKS Super Fire Racing Coil Pro for FD3S Mazda RX-7

HKS’s Super Fire Racing Coil Pro for FD3S Mazda RX-7 converts the 13B-REW from the factory wasted spark layout to independent ignition, using Japanese-made coils that HKS rates at about 1.4 times the secondary voltage of the stock system. It suits a hard-driven FD3S on a standalone ECU, where a strong, stable spark at high rpm guards against misfires. It is not a plug-in refresh for a stock car: HKS requires an ECU capable of independent ignition control, such as the F-CON V Pro, and the kit does not work with the factory ECU.

Development and Testing

HKS had the mounting bracket tested by a third-party facility against the vibration characteristics of the rotary engine, then anodized it for durability. Coil power comes straight from the battery through a relay for a stable spark. In HKS in-house testing, an optimized dwell time also improved exhaust emissions and fuel efficiency, which is why HKS asks that the dwell setting is made by a professional shop.

Features

Converts the factory wasted spark system to independent ignition for precise, consistent firing
Four Japanese-made coils rated by HKS at about 1.4 times the stock secondary voltage
Relay-fed coil power supplied directly from the battery
Coils relocated further from heat sources than the factory layout

Specifications

Coils: 4
Ignition layout: Independent, converted from wasted spark
Secondary voltage: About 1.4 times stock
ECU requirement: Independent ignition control, such as the HKS F-CON V Pro
Shipping Weight: 5.5lb (2.5kg)

Applications

Mazda RX-7: FD3S | 1993-2002 | 13B-REW

Notes

An ECU capable of independent ignition control, such as the HKS F-CON V Pro, is required. The Racing Coil Pro for FD3S is not compatible with the factory ECU, and no ECU is included
Wiring work is required to connect the ECU; the HKS F-CON V Pro Harness and Pin Terminal Set is sold separately for F-CON V Pro installs
HKS recommends HKS Super Fire Racing spark plugs to get the full benefit of the coils
California residents: this product carries a Proposition 65 warning
This part is intended for off-road or competition use where emissions laws apply, and the buyer is responsible for checking local regulations before installing it on a street vehicle

Frequently Asked Questions

Does the Racing Coil Pro for FD3S work with the factory ECU? No. HKS states that the Racing Coil Pro for FD3S is not compatible with the factory ECU. An ECU capable of independent ignition control, such as the HKS F-CON V Pro, is required, and wiring work is needed to connect it. No ECU is included, so budget for engine management and tuning first.
Which ECU can run this coil kit? The kit needs an ECU that can drive the 13B-REW with independent ignition control, one coil per plug. HKS names its own F-CON V Pro as an example. Other standalone ECUs with enough independent ignition outputs may also work, so confirm the outputs of your ECU with your tuner before ordering.
What changes compared with the factory RX-7 ignition? The factory FD3S uses a wasted spark layout. The HKS kit converts it to independent ignition with coils rated by HKS at about 1.4 times the stock secondary voltage. Power reaches the coils directly from the battery through a relay.
What is included in the kit? HKS supplies four Super Fire Racing Coil Pro coils with a vehicle-specific bracket and wiring harness for the FD3S RX-7. The anodized bracket was tested by a third-party facility for rotary engine vibration. The ECU, spark plugs and tuning are not included and must be sourced separately.
Does HKS make this coil kit for other engines? Yes. HKS offers Super Fire Racing Coil Pro kits for other engines, including the RB26DETT in the BNR34 Skyline GT-R and the 2JZ-GTE in the A80 Supra. Each kit uses a bracket and harness built for its own engine, so the FD3S kit does not transfer to other cars.

About HKS

HKS is a Japanese performance engineering brand founded in 1973 and headquartered in Fujinomiya, Shizuoka, with a long-standing reputation for developing high-quality aftermarket parts and motorsport-proven technology for enthusiast and professional applications. Known for innovations in turbocharging and engine performance, HKS produces a broad range of components including exhaust systems, turbo kits, electronics / engine management, and suspension solutions, with product development heavily influenced by decades of involvement in racing disciplines such as circuit time attack, drag, and drifting.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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HKS Super Fire Racing Coil Pro for FD3S Mazda RX-7 [43005-AZ001]

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HKS Super Fire Racing Coil Pro for FD3S Mazda RX-7

Development and Testing

Features

Specifications

Applications

Notes

Frequently Asked Questions

About HKS

Reviews