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Trmx2 bear in mind that each modification will have some downside. And when you add a lot of them together, it is possible to ruin a car through modifications. Think of the sum of the parts, the cohesive overall car setup. Think long term development.
Lots of people with highly modified cars do not like to admit this, but it is what it is. The marketing pitch about "racecar for the street" only goes so far. In reality, a great race car makes a shit road car, and vice versa.
Think carefully about your mods but remember not to let it get in your way of having fun and making memories.