Blog
Best Oil for a Tuned BMW: What to Run and How Often to Change It
Which BMW Longlife approval a tuned N54, N55, B58, S55 or S58 needs, when an LL-01 5W-40 makes sense, how Red Line, Liqui Moly, Motul and Mobil 1 compare, and why owners...
Downpipe vs Cat-Back: Which Should You Buy First?
Downpipe or cat-back first on a turbo BMW, Audi, VW or Supra? A $199.99 B58 downpipe with a tune adds 30 to 40 hp; a cat-back is about sound. Here is the...
BMW Carbon Buildup: Why Every DI Engine Gets It and How to Fight Back
Every direct injection BMW cokes its own intake valves with oil vapor. Here are the symptoms in order, what walnut blasting costs owners, and what catch cans and cleaners can and cannot...
S55 Catless Downpipes: Power, Sound, and Fitment for the M3, M4 & M2
OneFastShop's 3 inch S55 catless downpipes for the F80 M3, F82 M4 and M2 Competition: 25 to 40 hp with a supporting tune, fitment by year, the full cost, install notes, sound...
S55 Cooling Upgrades: How to Stop Heat Soak
Why the S55 heat soaks on the F80 M3, F82 M4 and M2 Competition, which charge cooler, heat exchanger, oil and DCT cooler to buy first for street or track, maker test...
BMW Charge Pipe: Why the Plastic One Fails
The factory plastic charge pipe cracks on N54 and N55 BMWs, even untuned ones, and splits on the S55. Which engines need an aluminum pipe, which can skip it, the warning signs,...