How much HP Gained

[Philvarah]

It's not just money on mods but you've got to pay for dyno runs before and after to see if you actually gained anything. Mods by themselves don't reach their full potential unless you get a custom tune that takes them into account. From what I can tell a bigger intercooler only really helps if you live in a hot climate. The stock intake and exhaust are already pretty low restriction and you've got to remember the engine is only 2.3 liters so any gains you're only going to see at high RPM anyway.
I had a Gibson and later a Flowmaster exhaust on my old Sport Trac and for now I'm enjoying the quiet. Gibson claimed 8 hp, I don't know that I felt it but highway mpg was definitely better than the EPA rating.
If I mat the throttle the back tire breaks loose at 30-35 mph when the boost comes on so that's plenty fast for me.
A tune, K&N drop-in, and an exhaust are about it for efficient use of your money. The law of diminishing returns kicks in rapidly after that.

From my research.... Think you are correct..
That's where I'm headed... It's only a 2.3L

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