ECU PROM Chip — “Street 28lb injector and 93 octane (Aftermarket)

This ECU chip appears to be an aftermarket performance PROM labeled Street 28lb injectors and 93 octane fuel. Designed for the 1986–1987 Turbo Buick platform. The handwritten label and unknown origin indicate a custom or private-tuner calibration, likely tailored for mild street performance.

🟡 Yellow Dot – Actual Tune Performance  Unknown

🔧 Compatibility:
• 1986–1987 Buick Grand National / Turbo T / T-Type / GNX
• Fits OEM 1227148 ECU (factory Turbo Buick computer)

📦 Includes: Chip only (as pictured)

Condition Notes:
• Hand-labeled “Street 28493”
• Pins intact, no corrosion observed
• Tune type unknown — aftermarket calibration not verified

Why You Want It:
Perfect for collectors or enthusiasts exploring legacy aftermarket tuning chips from the Turbo Buick era. May serve as a test or backup PROM for custom ECU setups or nostalgia-based restorations.

⚠️ Disclaimer:
This chip’s tune parameters are unknown. T6P has not tested or verified drivability, fuel, or spark tables. All items are sold as-is, with no returns or exchanges. Buyer is responsible for verifying compatibility with their ECU.