wild cat extractors& tickford snorkels

[slamd ef wagon]

just woundering how good these are there at a good price and my main consern with them if there weld on or flange bcos if there weld in im proberly betr off with paceys cos there bolt on n wld save a bit on installaion
if any1 no's plez let me no

are the tickford snorkals that nuch of a differance??
there on ebay 4 like 45 but im told u can get em at a ford dealer for like 35 40????