i know there has been lots on injectors here but not anything to help me out . i have a 2009 GT/CS convertable other then deleting the cats and a lowering kit it is all stock but i was wanting to know what are purple injector are they the 42 psi ones as the next thing is a engine upgrade a strocker 5.0 with a kenne bell 2.6 . but it has only 39 psi injectors with itan if mine are 42 would it not be better to reuse mine ?

 

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i've seen the stock ones they are black but like i have said mine are purple on the top with black bottoms ?