4 Point 0

My car is going in next Friday to have all of this removed.

Apparently Toyota make the correct grommets to block off the holes. I’ll try and get some pics and report back.

Having a few other things installed as well. 🤣

Sarawnty

The part number shown here is available from Toyota

BlitzIS

So these grommets would go into the intake piping that have been circled in blue in the above picture?

AlexZTuned

I just tried this and I love the additional noise! It doesn’t sound muffled anymore and took 5 mins. I also discovered the previous owner covered the bare metal with sound deadening material - I guess there were some creak/rattle complaints. Maybe I should remove that too 😉

I captured some high-def interior audio clips with my setup that I’ll share in a bit - much more induction noise and my Turbosmart plumb back valves are much louder.

myrr

I tried this and was super optimistic about the results at first when pulling out of the driveway... however after driving around a bit reverted back to stock. Reason being, at least on my T, along with more mechanical noise (that was pleasant) I gained a super high pitched whine that to my ears wasn't desirable.

Was an easy thing to try though, and appreciate the thread regardless.

A question for those who don't have T's, does the rear carpeted panel that pulls off the frame above the sound symposers have slats/vents in it? I noticed that mine does... wasn't aware of that until I popped it off. I know the T is supposed to have less insulation, so curious if that part is different as well.

I only ask because if that part is not common to all trims, it might be an easy upgrade for those who want more mechanical noises in general.

Edit: looks like it is "vented" across all 991.2 trims at least. According to my Google-Fu. Was worth exploring though! Carry on....

AlexZTuned

Here’s my interior audio clip. Turbosmart plumb back valves and intake/induction noises are much more audible and there is more organic noise that enters the cabin. Now I feel like I just removed the ear muffs off my C4. Don’t think I’ll ever go back.

4 Point 0

Is your T stock? These cars are quiet stock, and Porsche probably wanted some noise.

But once the exhaust is modded, there is plenty of noise and you don’t need the symposer competing.

Epic man . I’m excited to clean up the interior sound as well.

With all the TiAL tubes and Turbos and catless and Vektor headers, my car sounds great.

I think its perfect values closed. Open is awesome at the track, but a little loud on the street. It turns too many heads on the sidewalk when open and attracts too much unwanted attention. But closed its musical and not in anyones face. Best of both worlds.

myrr

^yeah intake/exhaust is otherwise stock so yeah that’s probably why it wasn’t a huge difference. Based on the video above it’s a different story with some mods!

AlexZTuned

I have full bolt ons with TiAL turbos, inlets, and Vektor headers with a catless exhaust. Also have Turbosmart plumb back valves and a BMC filter - no PSE so it’s on all the time. My quiet setting is putting it in normal mode to drop RPMs at idle and not flooring it 😉

It’s probably about as loud as you can get in the interior and I have no complaints. But I have a high threshold for sound.

4 Point 0

Bump for guys making new Y-Pipe.