BMW 135i / N54 Twin Turbo

In for Walnut Blasting at Llandow Tuning to strip away that stubborn carbon buildup on the inlet valves. Over time, carbon restricts airflow, saps power, and can trigger misfires or uneven AFR ratios—throwing your engine's performance off balance.

Walnut blasting clears it out effectively, but it can creep back (we've seen reaccumulation in as little as a year). To combat this, consider upgrading your breather system with an oil catch can for longer-lasting results.

The proof? Without decarbonizing, cylinder airflow drops measurably translating to real-world power loss you can feel.

Drive a GDI/TSI/TFSI petrol or modern diesel?
Reach out to Llandow Tuning—we've mastered Walnut Blasting for nearly 15 years! #BMWTuning #N54 #WalnutBlasting #EngineMaintenance