The inline-six B58 engine is the heart of the current BMW M Performance lineup, providing a broad grin on the faces of countless customers worldwide. Whether in the M240i, M340i, M440i, or the Z4 M40i Roadster, the turbocharged engine delivers sovereign propulsion in every environment. Recently, the engine's power output was increased to 392 horsepower.
However, for the tuning experts at G-Power, less than 400 horsepower is a level that leaves room for improvement. As a result, they have developed a performance upgrade package to address this issue.
View Price on AmazonThe new GP-480 performance upgrade increases the engine's power output to up to 480 horsepower, bringing the B58 engine to the same performance level as the base S58 engine used in the M2 (G87). Depending on the specific model, top speeds of up to 186 miles per hour are possible. To achieve this power boost, G-Power modifies the engine's hardware, installing an HJS downpipe, new charge air pipes, a more efficient charge air cooler, and a Deeptone exhaust silencer with carbon tailpipes.
The exhaust silencer also provides a significantly more intense sound and a stationary noise level of up to 100 decibels. All components are reportedly street-legal and do not hinder the use of the vehicle in public traffic. After the hardware installation, an individual adjustment is made on the G-Power performance test bench in Gachenbach, Bavaria.
Source: bimmertoday.de
