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Couple of questions:
For N52 owners is this more reliable (or at least as reliable) as just taking the money and trading for a 135i/335i? How long can you run it on the street or track before heat issues?
Are the headers required? What do you lose if you don't have them?
Lastly how much weight does the full kit add and what does it do to the front/rear weight balance?
Any change to the minimum AKI/octane gasoline that must be used?
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