Quote:
Originally Posted by Impulsed7
I'm a little confused at this intake valve cleaning you guys are obsessed with. Arent the 335's direct injected? so no carbon buildup on the intake valves. Not sure what the cleaning accomplishes.
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exact opposite dude....carbon build-up is terrible in these N54's. i've seen pics of cars with less than 30k with nasty carbon build-up. it is definitely required maintenance on these motors...without a doubt.