[EmanAkbarpour]

Has anyone done a muffler delete and a vibrant ultraquiet resonator on their n52 328i?

Looking for a nice tone with some volume. Not sure if I want to delete my cats yet.

[Raimund]

Originally Posted by EmanAkbarpour

Has anyone done a muffler delete and a vibrant ultraquiet resonator on their n52 328i?

Looking for a nice tone with some volume. Not sure if I want to delete my cats yet.

Try 135i muffler with or without resonator delete. Sounds like PE. If you search on youtube "135 muffler on 128i" theres a clip.

[oVeRdOsE.]

or even 330 muffler has a valve. direct fit. Source a vacuum pump.

I saw them time to times on market, around 50-100$. I dont know how they sound, but I was tempted to try.

I simply use those generic valved muffler with pneumatic actuator. Wanted a 3''.

[oVeRdOsE.]

it gives a sweet L6 sound.

vibrant race resonator , 18'' .
Even if its not the quiet one, it quiet down quite a bit.

[gaze2]

Originally Posted by beingwalker1

Absolutely, a muffler delete combined with a vibrant ultraquiet resonator can indeed give your N52 328i a satisfying tone without sacrificing too much volume. This setup is popular among enthusiasts who want to enhance the exhaust note without going too extreme.

The muffler delete will amplify the engine's natural sound, providing a deeper and more aggressive tone, while the vibrant ultraquiet resonator will help in reducing any unwanted drone or raspiness, ensuring a smooth and refined exhaust note.

Regarding the catalytic converters, it's wise to proceed with caution. Deleting them can potentially improve flow and increase volume further, but it may also lead to legality issues depending on your local emissions regulations. Additionally, removing catalytic converters can have adverse effects on the environment.

If you're uncertain about deleting the cats, you can start with the muffler delete and resonator setup first to gauge the sound and see if it meets your preferences. It's always a good idea to consult with experienced enthusiasts or professionals to ensure the modifications align with your goals and local regulations.

Overall, the combination of a muffler delete and vibrant ultraquiet resonator should provide a nice balance of tone and volume for your N52 328i, giving you an enhanced driving experience without going overboard.

Thank you, ChatGPT

[oVeRdOsE.]

Originally Posted by gaze2

Thank you, ChatGPT

ahaha , didnt noticed.

when the sentence starts with ''absolutly'' it's pretty clear

[mattanderson]

It's always a good idea to consult with experienced enthusiasts . . .

What would we do without you, ChatGPT?

[The Nightman]

Originally Posted by oVeRdOsE.

or even 330 muffler has a valve. direct fit. Source a vacuum pump.

I saw them time to times on market, around 50-100$. I dont know how they sound, but I was tempted to try.

I simply use those generic valved muffler with pneumatic actuator. Wanted a 3''.

I ran a 330i exhaust with catless headers and secondary cats. Very factory sporty sound and subtle burbles too. Unfortunately with the valve always open, cold starts are pretty loud and it drones at highway speeds. I eventually went back to stock but would still recommend the 330i set up to those that aren't as sensitive to NVH as I am.

I also had the Performance Exhaust with stock cats and catless midpipes. That sounded awesome but was obnoxiously loud.

[EmanAkbarpour]

Originally Posted by oVeRdOsE.

it gives a sweet L6 sound.

vibrant race resonator , 18'' .
Even if its not the quiet one, it quiet down quite a bit.

What exactly is this full setup? Do you have any sound clips?

[EmanAkbarpour]

Originally Posted by Raimund

Try 135i muffler with or without resonator delete. Sounds like PE. If you search on youtube "135 muffler on 128i" theres a clip.

What is the difference between the 135i n55 muffler and the n54 muffler?

[mattanderson]

The internal piping on the N54 135i muffler has more perforations, as I understand, and the N55 is closer to the PE.

[oVeRdOsE.]

Originally Posted by EmanAkbarpour

What exactly is this full setup? Do you have any sound clips?

I did do some sound clip, but when I was about to import the clips into Powerdirector to edit , the files corrupted... I need to do new one.

The sound won't be relative to most setup since it's pretty unique .
It's a E91 , N54 single turbo, pipe arrangement is 1-2-1 (downpipe, OEM dual mid pipe, 3'' single pipe).
High flow cat > 18'' vibrant resonator > 3'' ebay specials pneumatic valved muffler.

I like it a lot. Still in breaking in period, dont have ton of time to use this car for now, it's my 5th car as ''a project car''

[BReif61]

While it's not on your original list, i'll plug the AA gen2 axle-back exhaust. Nice mellow sound, but still noticeable. Looks good. Don't have to scour junkyards or ebay to find.

[EmanAkbarpour]

Originally Posted by Raimund

Try 135i muffler with or without resonator delete. Sounds like PE. If you search on youtube "135 muffler on 128i" theres a clip.

That actually sounds really nice with a resonator delete. Is there any other sort of modifications I need to do to the muffler?

[stilesg57]

Just for comparison sake: my secondaries were shot and I wanted to go straight-thru all the way back from the headers for performance BUT I wanted to keep the sound low (like, stock-low).

I used Supersprint midpipes to a 3" Y to a 3" Vibrant Ultra Quiet resonator where the factory res was, then 3" the rest of the way to a Tsudo muffler.

Even with no secondaries the car's volume is dead-on to stock. I like quiet cars, but honestly even I would be happy with a little more volume when I get on it...

I'm sure the muffler is doing most of the work, but clearly the Vibrant Ultra Quiet resonator is quieting things down a lot as well.

If you're keeping the secondaries I'm pretty confident you could do just a Vibrant and delete the muffler entirely without being too loud.