@boyd3308 haha, but why? a bov is for ricers..diverter valves belong on euro's...vw's n audis. porsche as well, so how am i wrong? that its guna ruin the o2 sensors and possibly the catyltic converter from the rich a/f mix?.. all for that "sweet" sound. if i drove a honda or mistu, id do the bov...but since audi isnt why ruin it unless u gota standalone ems....im not wrong on any account good sir. lol, all viable information.
No, this is not normal, however it is a simple fix. All you need to do is replace your DV (diverter valve). It is worn out, causing the flutter sound.
compressor surge is the excess boost in your piping trying to turn the compressor wheel the opposite direction that what the exhaust is turning it, go to stratmosphere and order the hyperboost hx diverter valve....dont get a bov, audis rely on that recirculated air for the air fuel mix....dont listen to someone who says blow off valve...garbage on a euro.
@boyd3308 haha, but why? a bov is for ricers..diverter valves belong on euro's...vw's n audis. porsche as well, so how am i wrong? that its guna ruin the o2 sensors and possibly the catyltic converter from the rich a/f mix?.. all for that "sweet" sound. if i drove a honda or mistu, id do the bov...but since audi isnt why ruin it unless u gota standalone ems....im not wrong on any account good sir. lol, all viable information.
steezmuffin686 1 month ago
keep it it sounds sick
camsac 4 months ago
No, this is not normal, however it is a simple fix. All you need to do is replace your DV (diverter valve). It is worn out, causing the flutter sound.
molks0 11 months ago
compressor surge is the excess boost in your piping trying to turn the compressor wheel the opposite direction that what the exhaust is turning it, go to stratmosphere and order the hyperboost hx diverter valve....dont get a bov, audis rely on that recirculated air for the air fuel mix....dont listen to someone who says blow off valve...garbage on a euro.
steezmuffin686 11 months ago
That "flutter" sound is gonna kill your turbo
blackaudiquattro 1 year ago
bov ;)
Domnaek 1 year ago
Don't worry, that's a normal sound. It's from the diverter valve on the turbo.
pigy15 1 year ago