We put new Don M 40hp nozzles and rebuilt the bodies on our injectors on our '03 and now when I give it any throttle while traveling, it will have a really high pitch squeel like turbo whine, only louder and different. We tightened the intercooler boots, but we still have a noise. It does it w/ the edge juice on all levels. Should changing injectors change the way the engine sounds? Is this common.
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