Quote:
Originally Posted by Rotzy
Plugs should probably be swapped out for a colder set anytime you apply a tune with more boost, but this is a discussion that should be had with the tuner. Judging by the recent threads about plug replacement on a 50i, it seems that it needs new plugs a lot sooner than most other vehicles. This is a small price to pay for the awesome power/torque of this engine
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Other then change plugs more often, what else? I was told the coils and injectors are tend to failure even on stock engine. Maybe HPFP as well?