B48 Tuning Guide – 300whp for $1500
The B48 is one of BMW’s newer modular engines, that are fitted in a host of entry-level models in their lineup including the 230i, 330i, 430i, and 530i. You will find this 4-cylinder turbo to be responsive and fuel efficient. However, once you get used to the power, the B48 may feel a bit flat and…