Buick Rainier 2004–2007 tuning files
Typical stock and Stage 1 figures for each engine. Open an engine for torque, ECU and technical data.
Engine
Stock
Stage 1
Gain
4.2 V8 279hp
279 hp
295 hp
+16 hp
5.3 V8 294hp
294 hp
310 hp
+16 hp
5.3 V8 304hp
304 hp
321 hp
+17 hp
Figures are typical for a stock vehicle in good condition. Actual results depend on condition, fuel quality and fitted hardware.