Quote:
Originally Posted by ianf2002
Only move away from the stock air filter as a last step to find more power. The intake is not the bottleneck (esp on N55's). Change your FMIC rather.
All these AFE/K&N type filters do is let more crap to get sucked into your engine. I used to use K&N filters on my motorcycles, until I noticed how much dirt gets past the filter.
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That's kind of how I feel, although, the guy I spoke with who told me he got 34mpg with a stock tune and the DCI did make me forget about my better judgement for a day or two!