Internal Engine Upgrades
Once you get to a certain horsepower level, the factory rods and pistons may not like to continue to cooperate. At this point, forged replacement items are in order. And while you're at it, we might specify an increase in displacement. 2.2 liters seems to be the most popular size, but you could go bigger...
If the head is off, we'll probably want to have it ported, and swap in some high-performance valve hardware, too.
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