BMW Performance to offer engine upgrades for the 135 and 335
The lovers of all things BMW, BimmerFile, have learned that BMW Performance will be offering an output upgrade for the N54 twin-turbo found under the hood of the BMW 135 and the 335. The N54 is the popular 3.0L twin-turbocharged inline 6-cylinder engine that BMW says produces 300-hp (on the stateside). The new BWW Performance [...]
