My main concern here would be the epoxy.
Everyone that has the GSR tune check your ECUs for epoxy. Is it hard to open up to check?
What happened to being undetectable...
The only speed limiter I know of is for cars that were non-staggered with all seasons.
Due to the speed rating of the tires, you are limited to 130 mph.
Does anyone know how much the injectors can flow?
Running e85 requires 40% more fuel, is it possible you've reached the limit of the injectors?
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