Buick Lacrosse 2005 - 2009 3.8 V6 200hp

Real standard and upgraded performance figures for the 3.8 V6 200hp engine in the Buick Lacrosse 2005 - 2009.

The Buick Lacrosse 2005 - 2009 3.8 V6 200hp is one of the engines we work on regularly — here's what a stage remap typically changes for it.

Horsepower (HP)Torque (Nm)
Standard200312
Stage 1219337
Stage 2228349
Make
Buick
Model
Lacrosse
Generation
2005 - 2009
Engine
3.8 V6 200hp
Fuel type
Petrol

Frequently asked questions

Is Stage 1 tuning safe for the Buick Lacrosse 2005 - 2009 3.8 V6 200hp?

Yes — Stage 1 for this engine is a software-only remap calibrated to stay within its stock mechanical limits (turbo, clutch, fueling), so no hardware changes are required.

How much more power does the 3.8 V6 200hp make after tuning?

Standard output is 200 HP / 312 Nm; Stage 1 on this engine typically reaches 219 HP / 337 Nm. Exact results can vary slightly with fuel quality and vehicle condition.

How long does a Buick Lacrosse 2005 - 2009 3.8 V6 200hp remap take?

Once your original file is uploaded through the member panel, most requests for this engine are completed within a few hours.

Can the 3.8 V6 200hp be reverted to its original file?

Yes — we keep the original file on record for the request, so the ECU can be put back to stock at any time.