I'm looking to buy a set of Bosch 1600cc injectors for my S4 Turbo II, I've heard from some people that they are plug n play and some say that they require modification. I'm looking at a set that were ran in a FD with a kg fuel rail. Thanks guys.

 

Wont fit.They are 14mm top o-rings and if you have stock fuel rails they are 11mm.
They can be modded 2 fit or you are gonna need a aftermarket 14mm rail.

 

Not really,but they will fit.

The first ring of plastic needs to be shaved off the top so the top of the injector will fit into the rail.
you will need double O rings on the groove to seal.

 

Are there any other injectors thst car comparable to the Bosch's that flow that much but fit the stock rail?

 

You can either get marren modified bosch 1680cc injectors:
http://injector.com/cart/pc/Pro-Impo...00PI-7p104.htm

or you can get fancy injector dynamics ID2000s (which are high impedance which is a plus)
Injector Dynamics 2000cc injector set for 87-92 RX-7

 

The ID dynamics are far out of my price range and I would like to stay low impedance since I already have low impedance primaries. I sent the marren site an email since it wouldn't let me add them to cart or see a price so hopefully they're not too much.

Anyone else have any suggestions?

 

Just a heads up, the ID price is for 2... but yes, they're expensive.