Ive also heard alot of good things about FI but there exhaust looks low in the pictures. ive been looking into the greddy turbo (80mm) ti-c CBE. this is the 4th exhaust ive looked into. research alot before you make a desicion on anything. im looking at the 80mm cuz i know im going to turbocharge the car eventually and is partially why im looking at the ti-c (80mm) right now. i believe they make a 3" test pipe also...
if you want to keep the stock look you could look into gthuas but its expensive and VERY loud. stillen is also good for sound price and keeps the stock look. stillen is proven and you should be able to find alot of results on the exhaust on youtube. youtube is your friend when looking for exhaust setups and sounds.
good luck.