A Buick Rainier 5.3 V8 304hp (2004 – 2007) makes about 321 hp and 471 Nm with Stage 1 software, compared with 304 hp and 447 Nm from the factory. That is 17 hp and 24 Nm extra.

This is a petrol engine with a displacement of 5,327 cc and engine code 5300 Small Block.

Besides Stage 1, the following options are available for this vehicle: DTC Removal.

Frequently asked questions

How much power and torque does a Buick Rainier 5.3 V8 304hp gain with Stage 1?

About 17 hp and 24 Nm: from 304 hp / 447 Nm to roughly 321 hp / 471 Nm. The exact gain depends on engine condition and fuel quality.

Which extra options are available for a Buick Rainier 5.3 V8 304hp?

DTC Removal.

Figures are indicative and vehicle specific. Check the regulations that apply in your country before modifying engine software.