[MichaelBlake]

delete

[BoostinBiscayne]

Don't worry about the turbo whine/siren/whistle, it becomes more pronounced as you add modifications that help increase air intake intake and exhaust more efficiently, and the turbo's spool sooner etc. By the time I was done with the intake, fmic, kittyless dp, jb4, backend flashing etc, I was on the forums looking up the "dreaded siren of death=turbo failure." That was months ago. Just focus on fixing up the downpipe making contact with the chassis and look up how to fix wastegate rattle using the JB4. You'll be alright.

[BoostinBiscayne]

Forgot to mention, that my car/turbos are fine, A OK.

[Jeff@TopGearSolutions]

Originally Posted by BoostinBiscayne

Don't worry about the turbo whine/siren/whistle, it becomes more pronounced as you add modifications that help increase air intake intake and exhaust more efficiently, and the turbo's spool sooner etc. By the time I was done with the intake, fmic, kittyless dp, jb4, backend flashing etc, I was on the forums looking up the "dreaded siren of death=turbo failure." That was months ago. Just focus on fixing up the downpipe making contact with the chassis and look up how to fix wastegate rattle using the JB4. You'll be alright.

+1

[cwarren]

Originally Posted by MichaelBlake

just a few weeks ago i installed an aFe intake and jb4 g5 and I've noticed that when accelerating in first and second gear there is a whistle noise and I'm thinking its my turbos. Ive seen a few other post about this but i wanted help. obviously I really don't want to replace the turbos, I'm just out of warranty.. 41k. I'm also getting the wastegate rattle. i drive the car everyday and but want this fixed. I think I'm going to take the jb4 and intake off and go from there.

I also have vrsf dps which is another story actually. i picked the wrong shop (mostly work on jam cars) and they had trouble with the install and wanted to hurry and decided to do some welding... my car has a terrible rattle because the dps are touching the frame of the car now but I've had this problem but haven't had the chance to take my car back and have them fix it. i plan on going back soon i just hope they will do it for free.

just looking for more info and if anyone has had a similar problem. thanks

super curious what you mean by did some welding ?

[MichaelBlake]

Originally Posted by cwarren

super curious what you mean by did some welding ?

i was told the downpipes didnt fit and needed to be cut, adjusted and welded back.

[bigdaddycane]

take a look at your REAR turbo inlet tube that goes over the back of the motor, more importantly where it connects to the rear turbo. I just went through this issue two weeks ago. If you put too much torque on that tube when installing your new intake you *could* have dislodged it from the rear turbo down below. The connection point to the rear turbo is not a clamp, but a sh!tty little bracket arm that can get pushed out of place. You need to be very careful when installing any intake and certain ones with brackets (ETS) can torque the tube the wrong way (this is what I went through). To see if the inlet tube is off the rear turbo you will need to jack the car up and take the under panels off. The rear inlet tube is in a dark corner, but if you follow the rear DP up you can see if the inlet tube is not connected to the turbo housing. You will not be able to push it back on from underneath, but if you manipulate the inlet tube up TOP you can get it back into place.

As far as your downpipes, you should not have a fittment issue. It sounds like your shop is not familiar with installing DPs on an N54?

[davidwarren]

Originally Posted by MichaelBlake

i was told the downpipes didnt fit and needed to be cut, adjusted and welded back.

they didn't install them correctly then.

[Jeff@TopGearSolutions]

Originally Posted by cwarren

super curious what you mean by did some welding ?

Originally Posted by MichaelBlake

i was told the downpipes didnt fit and needed to be cut, adjusted and welded back.

Originally Posted by davidwarren

they didn't install them correctly then.

+1 on that also. OP please avoid that shop for future installs.

[railesq]

Isn't there a different downpipe fitment for xi? If not I'd like to know too, since I'm in the market currently, but my guess is the shop did the crap thing and shoved the square peg in the round hole, rather than just try and get the downpipes traded out for the right ones.

[bigdaddycane]

Originally Posted by railesq

Isn't there a different downpipe fitment for xi? If not I'd like to know too, since I'm in the market currently, but my guess is the shop did the crap thing and shoved the square peg in the round hole, rather than just try and get the downpipes traded out for the right ones.

yes, there are specific DPs for the Xi models.

[MichaelBlake]

Originally Posted by bigdaddycane

take a look at your REAR turbo inlet tube that goes over the back of the motor, more importantly where it connects to the rear turbo. I just went through this issue two weeks ago. If you put too much torque on that tube when installing your new intake you *could* have dislodged it from the rear turbo down below. The connection point to the rear turbo is not a clamp, but a sh!tty little bracket arm that can get pushed out of place. You need to be very careful when installing any intake and certain ones with brackets (ETS) can torque the tube the wrong way (this is what I went through). To see if the inlet tube is off the rear turbo you will need to jack the car up and take the under panels off. The rear inlet tube is in a dark corner, but if you follow the rear DP up you can see if the inlet tube is not connected to the turbo housing. You will not be able to push it back on from underneath, but if you manipulate the inlet tube up TOP you can get it back into place.

As far as your downpipes, you should not have a fittment issue. It sounds like your shop is not familiar with installing DPs on an N54?

ill have to do this next week. is it okay to drive the car for now or are there other possible problems if i don't fix it right away?

i know the shop was a bad choice it was their second time working with an n54 and i know not to go there again. i only picked the place because my brother is there often (drives an STI).

[bigdaddycane]

Originally Posted by MichaelBlake

ill have to do this next week. is it okay to drive the car for now or are there other possible problems if i don't fix it right away?

yeah, its ok....I drove mine a while that way....cuz I didn't know (symptoms were mild)

the main issue is that the turbo *could* pull dirt and dust in and possibly damage the compressor wheel, but with the splash pan in place and the gap being very slight that's probably not going to happen.

[chepy24]

Originally Posted by MichaelBlake

ill have to do this next week. is it okay to drive the car for now or are there other possible problems if i don't fix it right away?

i know the shop was a bad choice it was their second time working with an n54 and i know not to go there again. i only picked the place because my brother is there often (drives an STI).

thats why they work on subies lol my buddy has a wrx and his car is cake to work on he watched as i installed my dp on the xi he was like f that haha gotta know the car sucks they had to do welding id flip on them haha

[AlpineSwift]

My siren noise went away after dp install so I wouldn't worry about it.

[FrankyGTR]

i have afe intake i ONLY get this siren noise for a second when getting off WOT in 1st and 2nd.i only notticed this noise when i deleted the cowl.otherwise no siren only normal turbo spool sound.i figured it was normal since i never heard it untill the day i removed the cowl.

at first i thought the was a cop near by lol

[fozzydj]

Originally Posted by MichaelBlake

i was told the downpipes didnt fit and needed to be cut, adjusted and welded back.

I bought a set of cheapo’s at £170 and my mechanic got them on fine, there sound as a pound.

I get a slight whistling since having them fitted. Its extremely cold over here at the moment (UK), like -1, -2 degrees C on a morning. Im interested to see if I still get it when it warms up abit, Ive read it can be due to temp.

Fozz