Thrasher Performance PROM Chip – 92-43J2T.230

This Thrasher Performance chip is a vintage aftermarket PROM upgrade for the Turbo Buick ECM, originally developed to improve drivability, boost response, and overall street performance on mildly modified setups. A classic piece of Turbo Buick tuning history.

🟡 Yellow Dot – Used / Vintage Performance Chip (Untested)

🧠 Compatibility:
• 1986–1987 Buick Grand National / Turbo T / T-Type (OEM ECM)
(best suited for period-correct or lightly-modified setups)

📦 Includes: Chip only (as pictured)

Condition Notes:
• Vintage aftermarket chip, untested
• Label intact; normal aging from storage
• For collectors, period-correct builds, or retrofit use

Why You Want It:
Perfect for someone wanting an old-school Turbo Buick upgrade with nostalgic value. Great for collectors, those restoring a 90s/2000s modded GN, or anyone who wants to experiment with retro chip tuning.

All items are sold as-is, with no returns or exchanges. Buyer is responsible for verifying compatibility with their exact build.

⚠️ Disclaimer:
Due to the age of this chip and older tuning methods, no performance guarantees are made. This should be treated as a collector or experimental item only. Modern chips offer far superior drivability, safety, and tuning control. Sold as-is with no returns, refunds, or exchanges.