Holy Fook.....just found why my S1 is miss firing so much.

The bloke who tuned my car has broke one of the injecters of the metering head.

its snapped off.

can you remove one of these:
http://img.photobucket.com/albums/v411/kurdt5/injec.jpg

and buy a new injector to slot on??


or will i have to replace the metering head??

here's what he's done:
http://img.photobucket.com/albums/v411/kurdt5/head2.jpg

http://img.photobucket.com/albums/v411/kurdt5/head1.jpg

http://img.photobucket.com/albums/v411/kurdt5/head3.jpg

any ideas on what i can do or buy to fix this?? or any web links to the part i need would help.

fooking tuner.....im going to call him and kick his arse!