I think 1000cc is a little over kill for 450whp.
That's no great deal either. You can get the size you need for just a little more.

 

I was under the impression that even Bushur was removing the injectors from their stage 4 as they arent needed unless you have a larger turbo, IE: more air needs more fuel. I dont think it would hurt to get larger injectors, whatta ya say wideband? hook me up with some then, dont just sit there and bash me and the Vishnu camp.

 

I am on the reverse side of the fence with RC...I have had nightmare experiences with their stuff. Most times, these start life as small injectors that they bore out. I have found in my own attempted usage of these that this causes funky spary patterns and not good fuel distrubution compared to dedicated 1000cc injectors such as Denso offers (sold by all the japanese firms, take your pick).

Sometimes though, the injectors are actually 1000 cc units and not an overbored smaller injector

If it were me, I'd ask the seller for the RC part number...then call RC and ask what kind of injector it actually is. If it is Bosch, and they are dedicated 1000cc units, you are in good shape. If it is Lucas, run far far far away. if they are bored out versions of smaller injectors, you have to ask yourself what you are willing to live with in terms of driveability and potential tuning issues - not saying you will necessarily get these, but its a very real and problematic potential

 

get precision 680s around 350 for 4. Besides what every1 ealse says they are making me power.