title speaks for itself. difference? reliability? pro's con's? price difference? personal experience/opinions? anything hahahah

edit - where can you buy sz55 and sr55.. what whp/wtq are you looking at with the sz55 and the sr55

 

i dont know much about the sz55 but i do know the sr-55 is probley a bit more cash. I have seen the sr-55 put down over 500whp, and aps makes very very good products, i also know that aps made the sr-55 with the sti in mind, developing it to reah the sti's full bolt on potential, you might wanna look into a gt-35 also

 

apssti you should put a gt35r on you're wrx.....lol...well it could work...just a little more lag than you're vf-22....i bet you could hit 500hp off this simple bolt on....who i'm kidding nother ever ends up being simple something always goes wrong....

 

both good turbos