I didn't say it will blow anything, if you make more than a factory boost on a car your engine warranties are void. And of course the companies are going to tell you anything you want to hear. I'm an ase master mechanic out of Wisconsin. I'm just trying to save the lesser informed people from your ignorance sir. If your car is factory at 10psi and you switch to a boost solenoid that allows it to build to 18psi and 5 years down the road you have a defective rod bearing that spins for no reason beyond a manufacturer error in it...they will run your computer and see over boost and you'll be stuck buying a new motor. I have a 20 year 200k mile warrentie through metro Kia of Madison and I don't intend to void that over making a cool sound from my charge pipe from a cheap bov. A boost solenoid isn't going to cause failure of a bov piston. You bought a junk aftermarket part. Why does the factory bov not need the added vacuum? 🤔🤔🤔🤔.So the only way the solenoid will void warranty is if it causes a issue for stuff to fail is the cause of a failure. I think you need to look into aftermarket parts voiding factory warranties. When i contacted GFB they also recommended the MAC solenoid. Even if you use greddy and hks the MAC solenoid is recommended. Afe is just not factory cai. I think you need to do more research and start actually talking to these companies instead of putting out false information. If you are implying that this MAC will blow ur engine that is LOL.