I am gonna buy a Walbro 255 fuel pump off of this dude and he says that it will fit S4 or S5, I went to a web site though and they listed a 255 kit for S4 and one for S5. Should I get it? or no?? if it dosent drop right in could I make it work??

 

http://www.autoperformanceengineerin.../fuelpump.html

 

Thanks alot I think I may buy one through this guy instead. :P