Is it even worth doing, first off? I am considering doing both, but just curious to know how much HP the 2 will add. As of now my current bolt-on's are cai, headers, catback and gears. Plus a madz28 custom tune. I also have alot of suspension work done cause I like to hit the twisties/canyons (so no need to go that direction). So give me some feedback on these 2 mods guys.

 

The electric water pump is a good mod. that can give a proven 10 rwhp easy. As for the pulley, the ASP underdrive pulley is probably one of the better ones on the market.