Buick Rainier 5.3 V8 304hp chiptuning
2004 (2007) · Petrol
Stage 1: +17 hp & +24 Nm
Buick Rainier 5.3 V8 304hp · 304 hp · 447 Nm
Power+17 hp · +6%
Stock304hp
Stage 1321hp
Torque+24 Nm · +5%
Stock447Nm
Stage 1471Nm
Engine ECU
Read methods
Available options
With an individually developed Stage 1 tuning file, the Buick Rainier 5.3 V8 304hp with 304 hp and 447 Nm gets 321 hp and 471 Nm – an increase of +17 hp (6%) and +24 Nm. The file is created by our tuning engineers for your exact software version and is delivered via our file service portal in 5–15 minutes. Options such as DTC Removal can be combined in the same file.
Values are guide values from our dyno and comparable vehicles. Actual results depend on condition, hardware and fuel quality. Use only where legally permitted.
Technical data
| Fuel | Petrol |
| Displacement | 5327 CC |
| Compression ratio | 9.9 : 1 |
| Bore × stroke | 92.1 X 92.0 mm |
| Engine code | 5300 Small Block |
Other engines: Buick Rainier 2004 (2007)
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