Buick GL8 Tuning

6 supported Buick GL8 applications, 2000+.

Buick

6 supported GL8 tunes

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All Supported Buick GL8 Tunes

Supported Buick GL8 engines and controllers
2.4i 16V2000+175 hpECU Delco E83AutoTuner
2.4i 16V2000+175 hpECU Delco E67AutoTuner
2.5L2000+197 hpECU Delco E98AutoTuner
2.5L2000+197 hpECU Delco E39AutoTuner
2.5L2000+197 hpECU Delco E80AutoTuner
2.5L2000+197 hpECU Delco E39AAutoTuner

Other Buick Models

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About Buick GL8 tuning

Rapid Racing supports 6 Buick GL8 applications from 2000+ through AutoTuner, with stock outputs up to 197 hp. Every calibration is built for your exact engine, fuel, and modifications, then verified on our Dynojet 424xLC2 in Jenison, MI, serving Grand Rapids and West Michigan.

Supported engines: 2.4i 16V, 2.5L.

Supported controllers: Delco E39, Delco E39A, Delco E67, Delco E80, Delco E83, Delco E98.

Don't See Your Vehicle?

These lists cover off-the-shelf tuning platforms. We also do standalone ECU installs and custom calibrations, so reach out and we'll tell you what's possible for your build. Compatibility data last updated 2026-09-24.