mbainer
New Member
- Joined
 - May 2, 2021
 
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Have a 2021 Kia stinger GT2 and BTW absolutely love it! 
Just added a very nice after market exhaust, K&N intake, and intake snorkel/vents and have them installed for extra HP/torque. Do I also need an aftermarket blow off valve? And if so what would you all recommend?
BTW getting a lot of turbo whoosing noise that I did not have before. Whoosh/compressor noise occurs most at freeway speeds when I step on it and then a back pressure noise when I let off the gas. Is this normal? Don't want to do anything to void the warranty or damage the car/motor.
Any advice help?
	
		
			
		
		
	
				
			Just added a very nice after market exhaust, K&N intake, and intake snorkel/vents and have them installed for extra HP/torque. Do I also need an aftermarket blow off valve? And if so what would you all recommend?
BTW getting a lot of turbo whoosing noise that I did not have before. Whoosh/compressor noise occurs most at freeway speeds when I step on it and then a back pressure noise when I let off the gas. Is this normal? Don't want to do anything to void the warranty or damage the car/motor.
Any advice help?
	

