I added a cold air intake to my car but after doing so I redline at 6000 rpms with the stock one I ususally went to 7300 easily im wondering what this could be
Air intake sensor ? Now you're getting more air that the engine don't recognize. Have it checked on a tune-up machine & or replaced. You didn't say what year & type of car, so I can only speculate.
Its a 1994 honda civic ex coupe sohc 1.6l vtec
Shop around online for a 2.0 lt. 200hp VTEC engine. 8500 rpm!
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