The S15Link (NS15X) is Link Engine Management’s G4X plug-in ECU for the Nissan SR20 engine family using the 64-pin blue ECU header. It covers the S15 Silvia, S14a Kouki facelift, SR20DET and SR20DE variants of the S13/S14, and several SR20/SR16 Pulsar models. The PCB fits inside the original factory ECU enclosure with no loom modification. An onboard MAP sensor (4-bar or 7-bar) is built in.
Important: The S15Link NS15X is for the 64-pin blue header and SR20 engines only — it does not fit CA18DET. For CA18DET S13/180SX or pre-facelift S14 SR20 with the 76-pin header, the correct product is the S13Link NS13X.
Vehicle Fitment
| Vehicle | Engine | Header | Years |
|---|---|---|---|
| Nissan S15 Silvia | SR20DET / SR20DE | 64-pin blue | 1999–2002 |
| Nissan S14a Silvia (Kouki / facelift) | SR20DET | 64-pin blue | 1996–1998 |
| Nissan S13 Silvia / 180SX | SR20DET (not CA18DET) | 64-pin blue | — |
| Nissan RNN14 Pulsar GTI-R | SR20DET | 64-pin blue | — |
| Nissan N15 Pulsar | SR16VE | 64-pin blue | — |
| Nissan N14 Pulsar | SR20 distributed | 64-pin blue | — |
Manual transmission only.
Key Specifications
| Property | Value |
|---|---|
| SKU | 217-4000 |
| Link model code | NS15X |
| Onboard MAP sensor | Yes — 4-bar or 7-bar (check board sticker) |
| Transmission | Manual only |
| CAN buses | 2 |
| Base map | Included |
| Software | PCLink G4X (free) |
G4X Platform Features
- Launch control, anti-lag, flat shift
- QuickTune auto-tune
- Sequential injection and direct spark
- 512 MB onboard data logging, 250 channels, 1 kHz/ch
- Individual cylinder fuel and ignition trim
- 6D fuel and ignition mapping
Recommended Accessories
- LinkECU CAN Lambda Controller — wideband lambda via CAN
- Link XS Expansion Loom — additional I/O
Frequently Asked Questions
Does the S15Link fit CA18DET?
No. The S15Link NS15X is for SR20 engines only. For the CA18DET S13/180SX, the correct product is the S13Link NS13X which fits the 76-pin header used on those cars.
Which S13 variant does the S15Link fit?
Only the SR20DET-equipped S13/180SX with the 64-pin blue header — not the CA18DET variant. If your S13 has a CA18DET or if it’s an early SR20 swap into a CA18 shell that retained the 76-pin header, the S13Link NS13X is the correct product.
Is a base map included?
Yes. A startup base map is pre-loaded. Professional dyno tuning is required before use.












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