[sneakypenguin]

For starters charging someone for the more expensive Keihin injectors then actually fitting the much cheaper hana injectors, giving a car back that will splutter or not run on lpg and thats just off the top of my head.

Of course I wouldn't, you can get a duff batch (tho lpg tanks are more stringently designed, tested and manufactured). All reputable garages have systems in place for duff parts, phone supplier, they send out new parts, you send back duff ones, 2-3 days max, they wouldn't string it out for 3 weeks.

mick