LinkECU PlugIn Mazda RX7 Series 6

Name: LinkECU RX7Link S6 | Mazda RX7 FD S6 | XTRA Motorsport
Brand: Link Engine Management
SKU: 218-4000
Price: 1250.00 EUR
Availability: BackOrder

1250.00 € excl. VAT

The price is shown without VAT. For European countries correct VAT is automatically calculated at checkout.

Link RX7Link S6 (RX7S6X) G4X plug-in ECU for the Mazda FD3S RX7 Series 6 13BT rotary. Fits inside the factory OEM enclosure. Supports NA, parallel twin turbo, and single turbo configurations. Sequential turbo control is not supported — see limitations. Manual only.

Available on backorder

SKU: 218-4000 Categories: Link ECU, Standalone ECU (Engine Control Units) Tag: Backorder

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The RX7Link S6 (RX7S6X) is Link Engine Management’s G4X plug-in ECU for the Mazda FD3S RX7 Series 6 with the 13BT twin-rotor engine. The PCB fits inside the factory ECU enclosure with no loom modification. Full electronic boost control replaces the factory boost management system.

Critical limitation — sequential turbo: The RX7Link S6 does not support factory sequential turbo control. The ECU cannot sequence the primary and secondary turbochargers in the factory manner. For this ECU to function correctly, the sequential turbo system must be bypassed — the car must be converted to parallel twin-turbo operation or a single-turbo configuration. This is the standard approach for performance-tuned FD3S builds.

No onboard MAP sensor is fitted. The factory FD3S MAP sensor (rated to approximately 220 kPa) is used via the expansion connector, or an upgraded external MAP sensor can be wired to An Volt 3. For high-boost builds an upgraded sensor is required.

The Series 6 uses the early FD3S yellow/multi-lock connector ECU header. Verify your connector matches the product photo before ordering — it differs from the Series 7/8 white connector.

Vehicle Fitment

Vehicle	Engine	Series	Years
Mazda RX7 FD3S	13BT (twin rotor)	Series 6	~1992–1995

Manual transmission only. Series 6 connector (yellow/early header) only — not Series 7/8.

Key Specifications

Property	Value
SKU	218-4000
Link model code	RX7S6X
Onboard MAP sensor	No — factory 220 kPa sensor or external upgrade
Sequential turbo	Not supported — parallel twin or single turbo conversion required
Transmission	Manual only
CAN buses	2
Base map	Included
Software	PCLink G4X (free)

G4X Platform Features

Full electronic boost control (replaces factory sequential system)
Launch control, anti-lag, flat shift
Sequential rotary injection and direct spark
512 MB onboard data logging, 250 channels, 1 kHz/ch
6D fuel and ignition mapping

Recommended Accessories

LinkECU CAN Lambda Controller — wideband lambda via CAN
Link XS Expansion Loom — required for external MAP sensor upgrade

Frequently Asked Questions

Does the RX7Link S6 support sequential turbo operation?

No. Sequential turbo control is not supported. The factory sequential turbo system must be bypassed — the car is run as parallel twin-turbo or single-turbo. This is standard practice on tuned FD3S builds and does not limit power or tunability; it simplifies the boost control strategy.

What is the difference between the S6 and S7/8 RX7Link?

The Series 6 (RX7S6X) and Series 7/8 (RX7S7X) FD3S ECUs use different physical connectors — the early yellow header (Series 6) and the late white header (Series 7/8). Both lose sequential turbo control; neither has an onboard MAP sensor. Check your car’s production date and connector photo to confirm which version you need.

Weight	1.15 kg
Special order	7 days
Brand	Link Engine Management
ECU Type	PlugIn
Suits Vehicles	Mazda

Backorder Products

These items aren't kept in stock but are available for purchase.

Sensor connectors and Deutsch DT/DTM/DTP connector kits sometimes are listed as Backorder items, but we stock seperate items, so it only takes to collect these for your shipment in kits.

These items are supplied on backorder. Delivery times depend on each manufacturer's production schedule and current demand, so the figures below are typical estimates under normal conditions — not guaranteed delivery dates. When demand is high, lead times can extend beyond the ranges shown.

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Typical lead times (normal demand):

Bosch Motorsport ABS: 3–4 weeks
Emtron: ~4 days
AiM: 2–7 days
Ecumaster: 1–2 days
Link: up to 1 week

Please check the estimated delivery time on each product page, and get in touch if you need a current estimate before ordering.

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