i have just installed these springs on my evo 9... but when i am turning i hear a loud knock. the springs r seated right im just not surte why its making that noise...the only thing i could think of is maybe i installed them upside down but then the tein logo would be upside down too

 

the top and bottom perch holes aren't aligned properly, loosen the strut shaft nut and tweak the upper seat until it is correctly positioned and re-install... you can check by sticking a rod or a tool through both holes to verify its correctly aligned... hope this helps!