| *drilled* First off, *ALL* injectors are "drilled", unless you use a water jet. The difference is that a manufacturer that uses a 100% QA'ed good injector actually pays attention to what they are doing, does real R&D work and has a consistent product. redrills are all kinds of fucked up. inconsistent drilling angles/sizes, lack of deburring as shown in the OP's photo, and just as bad - lackluster flow-matching. Get injectors from a reputable manufacturer, always, period. Going side feed? Nismo Going top feed? Injector Dynamics Everything else is a crapshoot.
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