Excuse me for not knowing, but what is the restrictor pill? Is this something the factory puts in? What does it do? And what does the pill mod involve and why do people do it? Thanx

 

lol its for hp tuner guys who put a welding tip thing into the hose that goes to the wastegate actualtor and doesnt let as much air through there for letting the car boost more before the wastegate opens. its like a manual boost controler