i removed my dump valve of my 2wd saff red top i dont like the noise anymore from the top of the charge cooler. its almost a standered car running a stg one chip i pluged the short hose with a bung thinking this would be the end of the noise. i dont have the standerd air box instead a big k&n with the pipes that would of gone into the std one going into the k&n. i still have the noise ive got waste gate chatter when i ease of which is pleasing to the ear but got air pressure build up noise or it could be boost pressure escaping its deffenatly boost pressure as im on exseleration its quite loud. it gets louder the faster i exselerate. all the boost hoses and pipes look good and a new waste gate actuator. i didnt fit the the dump valve twenty years ago so i dont no what it was when standered. the dump valve was connected to a short hose on the top left hand side of the standered charge cooler ass if you were standing in front of the car looking at the engine. does this short hose have to be plumbed in some where els now or just left blanked of where the dump valve was. thanks in advance