i noticed recently that there is a loud blowoff noise when i accelerate and let go of the gas,usually it starts when i let go of gas at 2300k and gets louder the higher i rev.

also if i rev in park, and let go of gas, the blowoff noise is loud..
my s4 is 2002 with about 18k miles on it.
i used to have an apr chip, but at about 16k it was removed.
i also got an apr bipipe
any comments/help..maybe diverter valves??
i got an afmkt warranty to 100k, so anything the dealer can do??

no, i havnt pressure tested it..
can the dealer do that to check for a leak?
also my turbos sound louder even when warm

i have been hearing a loud turbo noise for a long time, but now the noise is louder..
with the valve being ripped or something, would it make the turbos die sooner..
if yes, id get new turbos under warranty, so..
should i just drive the hell out of them, on cold days and stuff,(keep in mind im stock now) so only like 8 psi, but if this makes my turbos die, id prefer that..
instead of getting new valves under warratny with 200 deductible, id rather get new turbos, and new valves for 200, when the turbos fail..

any comments/opinions??

bartuning said theyll give me K04's under warranty..
(im in houston)