As you begin to modify your BMW 135i, 335i or 535i, a metal charge pipe should be one of your first upgrades. The stock plastic charge pipe is prone to cracking or exploding when tuned.…
LED angel eye bulbs are one of my favorite BMW modifications. They’re relatively cheap, easy to install and greatly improve the look of any BMW. Over the years, I’ve installed many different styles and brands…
As you begin to modify or maintain your BMW 135i, 335i or 535i, you must address the ignition system. Spark plugs and ignition coils are the achilles heel of the N54. These two parts are…
Walnut blasting is the procedure that removes carbon buildup on the intake valves. Unlike most cars, the 135i, 335i, 535i and 550i have direct injection instead of port injection. This means the fuel injectors spray…
The headlights on my new-to-me BMW were in rough shape. They were faded with yellow oxidation spots and were starting to crack. I knew I had to give them some love. I’ve had really good…