ottodawg

Was accelerating up a grade and heard a loud pop. Only had 1 to 3 psi boost for the rest of the drive. Also have a loud woosh sound when accelerating. Didn't go into limp mode and no check engine light. Assume I may have blown a boost pipe somewhere?

DJ23

Definitely a boost pipe loose or broken. Take to dealer should be able to be repaired.

Jay

Masonbrick

I agree with DJ23

This was a typical day for me back in my DSM era ....not the dealer part though

911dude41

check those clear boost solenoid/vacuum lines, I bought my TTS with one of those popped out. Was only making 12 psi and also had loud whooshing sound.

vrybad

See Big Swole's thread for a potential cause......y-pipe breakage?

D1al911

Possible throttle boot pop. Easy to spot, so I recommend checking that first. And if it is, upgrade to a 2019 boot which has better fasteners.

Attachment 1339796
Attachment 1339797
Attachment 1339798

ottodawg

Well crap, just got the bumper back on after changing the air filter. Looks like I got some work to do.. Thanks guys!

ottodawg

Doesn't look like it's the boot or Y pipe, guess it's bumper time..

ottodawg

Take it back, it's the boot. If you don't look real close, it looks like it's ok. Clamp slid off when I moved it though. At least no bumper pull. Thanks for the help!

ottodawg

You don't happen to have the PN for the new style boot do you?

D1al911

Ha! glad you noticed it before pulling the bumper off .

997-110-647-74

It's ~$200.

ottodawg

No doubt, thanks for the info! 👍

onfireTTS

Another interesting part change.....my 2019 does not have the fake vacuum nipple under the map sensor that is shown in your picture.

SamboTT@ByDesign

This is the boot you want otto...

991-110-677-71

ottodawg

Hmm, so that will work on a 991.1 TTS?