i hate PMs. always seem to delete them by accident and they are hard to keep track of.   any way to disable PMs?

What are the differences in these turbos, i'm kinda new to setups, are these straight bolt on or do mods need to be done for these :?

EUGENE DACE 7815 MORROW AVE SPARKS, NV 89436   LETS ALL TAKE A MINUTE TO BASH THE LAZY, LYING PIECE OF CRAP..   HE TOOK MY MONEY ORDER(I HAVE DOCUMENTATION OF DELIVERY), NEVER SENT ME MY SWAY BARS, NO CONTACT,THEN FAKE PHONE NUMBER REGISTERED WITH EBAY, FINALLY REPLIED, LIES AND SAYS "NOT RESPONSIBLE FOR LOST ITEMS IN THE MAIL" YET NO TRACKING NUMBER WAS PROVIDED OR CARRIER SPECIFIED SO I CANT EVEN CALL TO SEE IF IT DID GET LOST.   I SEE HIM WITH THIS USERNAME ON EBAY RIGHT NOW SELLING SO AVOID

Great experience buying from 3L_951 - fast shipping, good communication - what more could one ask for. Thanks again!   Tom