after toying around with the idea of boosting my reliable 5SFE i decided that with an automatic transmission, little know how, and rust creeping in from every direction including on my block and oil pan

(should i be worried btw?).. i was probably heading in the direction of destroying my car. i have since decided that with my current setup it would be probably better to just keep it as clean and reliable as possible while improving the overall performance and functionality of the car without any major modifications.
Thus my to do list as of now:
hid's
trd rsb
eibach pro kit springs
... and a cold air intake
now i seem to have two choices here. I can either go to autozone and buy their Spectre setup which includes the cone and piping for around 60 bucks or buy
Venom_5's used weapon R. and advice here? youtube has me believing that the spectre sounds waay better.
second.. if i dont build a true CAI but rather go the easier route of SRI would it hurt my HP and/or throttle response over my stock airbox. I wouldnt mind running the piping but am frankly scared as to what will get sucked in especially if i leave the inlet to the piping by the bumper cover vent opening
is the SRI just for sound or does it actually hive me some modest hp gains ~ 5hp?
ps. anyone know where i can get my hands on a trd rsb?
thanks,
Cecil