| installed mine with the adapter kit I did my own research. The offset to the screens is minor and with the pressure vs. flow requirements in mind it will never matter. The restriction in the system is the injector outlet. Even with the offset, there is more fuel available than the injector can flow even wide open. I had no issues with the o-rings and once dialed in my car runs fantastic. Both Spddracer and na300zx(OH) have driven it and can attest to the performance achieved. The spacers do require care at assembly. I recommend a dab of RTV on the screws to effectively glue the spacer to the screw. It made it much easier. Deatschwerks injectors fill a niche. Not everyone wants to or can afford to spend $1000 plus for rails and injectors and the DW solution works very well. So in exchange for half the cost you get a proven performance upgrade with a slightly more difficult installation. So you have to make the choice. KKrofft
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