How hard is a B58 BMW swap?

A B58B30 swap into the BMW E46, BMW E36 and BMW E90 is a big job, but a good workshop can do it with a complete kit. Most of the time goes into the mounts, the adapter and the wiring.

The usual steps are: remove the old engine, fit the new mounts and the adapter plate, set the engine in, connect the wiring and the engine computer, then fit the cooling and the exhaust. A test drive and a final check follow.

Our kits come with parts that are made to work together, which saves time and guesswork. What we list: BMW B58 swap kits into E36, E46 and E90 chassis.

Before you start, check your local rules for registration and road tests after an engine change. We supply invoices and documents that help with this.