[quote name="Slightly Depressed Panda" post="1431573" timestamp="1381285681"]
Time and money measuring it up, making sure it fits, making sure it can be installed by anyone that buys it, organising providers for tooling and bulk manufacture.
Obviously if its so easy.. Go make your own and stop frikkin bitching..
Probably thinks injectors are overpriced at 100 bucks each for a bit of plastic and a spring..
Also I'm sure if PW and other fellas in his game could guarantee they would sell as many of their product as say Apple sells Iphones.. THen he'd price it a bit differently.. [/quote]And its good top quality aussie built stuff. If u want cheap sh!t go on fleabay and order some Chinese rip off crap with out results. Good one SDP....