The MR2Link V3 (TST205X) is Link Engine Management’s G4X plug-in ECU for the later Toyota MR2 SW20 (Rev 2, Rev 3, 1993 onwards) and Celica GT4 ST205 with the 3S-GTE Gen 3 or Gen 4 engine. The PCB fits inside the factory ECU enclosure with no loom modifications.
No onboard MAP sensor is fitted. The factory SW20 MAP sensor is used via factory wiring (limited to approximately 180 kPa / 11.6 psi boost). For higher boost builds, an external MAP sensor can be connected via the expansion connector. The MR2Link V3 has two CAN buses.
Model note: Rev 1 SW20 (1989–1992) and Celica ST185 use the MR2Link V1 TST185X. The Celica Carlos Sainz / GT-Four RC / Group A Rallye models take this V3 ECU.
Vehicle Fitment
| Vehicle |
Engine |
Years |
| Toyota MR2 SW20 Rev 2 |
3S-GTE Gen 3 |
1993–1994 |
| Toyota MR2 SW20 Rev 3 |
3S-GTE Gen 3/4 |
1994+ |
| Toyota Celica ST205 |
3S-GTE Gen 4 |
— |
| Toyota Celica Carlos Sainz Edition |
3S-GTE |
— |
| Toyota Celica GT-Four RC / Group A Rallye |
3S-GTE |
— |
Manual transmission only.
Key Specifications
| Property |
Value |
| SKU |
222-4000 |
| Link model code |
TST205X |
| Onboard MAP sensor |
No — factory sensor; ~180 kPa limit |
| Transmission |
Manual only |
| CAN buses |
2 |
| Base map |
Included |
| Software |
PCLink G4X (free) |
G4X Platform Features
- Factory boost solenoid control
- Launch control, anti-lag, flat shift
- Sequential injection and direct spark
- 512 MB onboard data logging, 250 channels, 1 kHz/ch
- 6D fuel and ignition mapping
Recommended Accessories
Frequently Asked Questions
Does the MR2Link V3 fit the early Rev 1 SW20?
No. The MR2Link V3 TST205X is for Rev 2 and Rev 3 SW20 (1993+) and ST205. The Rev 1 SW20 (1989–1992) and Celica ST185 use the MR2Link V1 TST185X.
Is a base map included?
Yes. A startup base map for the 3S-GTE Gen 3/4 is pre-loaded. Professional dyno tuning is required before use.
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.
For made-to-order items or products requiring special configuration, production begins only after your order is placed and paid. The binding delivery date is the one the manufacturer confirms once your order is scheduled; we pass it on as soon as we receive it and keep you updated on any change.
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.
Orders Processed by 14:00 GMT+3 (EET )Monday-Friday Ship The SAME DAY!
In-stock items only, excluding holidays.
Items that are in stock will be shipped within 24 to 48 hours. However, if you place your order before 14:00 GMT+3 (EET) and the items are available, they will usually be dispatched on the same day. If any items need to be drop-shipped from a supplier, we will ensure they are sent out as quickly as possible. If you have any questions or need special shipping arrangements, please feel free to contact us.
- We offer shipping via UPS and DHL. Economy or Express services.
- We ship to Europe and internationally from our stock.
- Remote location fee. Additional fee for non-standard remote destination location surcharge is 20 Eur per shipment. We will contact you in case of remote location.
- Confirmation e-mails are sent immediately after your package is shipped, complete with estimated delivery date and tracking information (trackable shipping methods only).
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