Some general Jeep engine questions?

thimbil

New member
I have a 95 Jeep Wrangler, 2.5L.
I have some questions.

-What would a cooler temperature thermostat do? Besides, obviously, keeping the engine cooler?
-Could someone tell me about throttle body spacers?
-What kind of tweaks or things I could get to increase HP or performance in general?
 
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