[tdavis42]

Anyone have any suggestions on what I could do to lower the exhaust volume?

Please don't tell me the only option is a new muffler.

I got sound checked today and hit 102db @ 50ft.

[boro92]

Do you have turn downs? What is the limit at your local track?

[tdavis42]

Originally Posted by boro92

Do you have turn downs? What is the limit at your local track?

No and 92 is the limit. I'm looking for something more permanent than turndowns. Race muffler probably.

[Taskmaster]

Originally Posted by tdavis42

No and 92 is the limit. I'm looking for something more permanent than turndowns. Race muffler probably.

Borla XS.

[tdavis42]

Originally Posted by TheAxiom

Borla XS.

I would like to keep the BMW PE.

[Taskmaster]

Originally Posted by tdavis42

I would like to keep the BMW PE.

Then add another muffler.

[justpete]

Originally Posted by tdavis42

Anyone have any suggestions on what I could do to lower the exhaust volume?

Please don't tell me the only option is a new muffler.

I got sound checked today and hit 102db @ 50ft.

Turn down tips will decrease SPL about 2dB, tops. A race muffler is the loudest option. Dropping 10dB is going to be tough.

[n55jb4]

Originally Posted by tdavis42

Anyone have any suggestions on what I could do to lower the exhaust volume?

Please don't tell me the only option is a new muffler.

I got sound checked today and hit 102db @ 50ft.

You have catless headers right, but do you have sec.cats in place? I have PE with sec.cats deleted and SS mid pipes instead. Sound is just perfect. Now with headers it's too loud imho - that was main reason I decided against it. The suicide combo is when you have both headers and sec. cat delete with PE - that sir is F1 racing sound, too loud for me

[justpete]

Originally Posted by n55jb4

You have catless headers right, but do you have sec.cats in place? I have PE with sec.cats deleted and SS mid pipes instead. Sound is just perfect. Now with headers it's too loud imho - that was main reason I decided against it. The suicide combo is when you have both headers and sec. cat delete with PE - that sir is F1 racing sound, too loud for me

Actually that's snooze quiet compared to a race muffler which is physically painful anywhere near the car. Headers, secondary delete, and a PE is seriously quiet by comparison.

[Mike.]

couldn't he throw another muffler in a straight portion of his exhaust to quiet that bad boy down??

[avocet]

Originally Posted by tdavis42

Anyone have any suggestions on what I could do to lower the exhaust volume?

Please don't tell me the only option is a new muffler.

You're car is too loud. You need a muffler.


muffler Translate Button
[muhf-ler]
noun
1.
a scarf worn around one's neck for warmth.
2.
any of various devices for deadening sound, as the sound of escaping gases of an internal-combustion engine.

[rjahl]

Originally Posted by justpete

Turn down tips will decrease SPL about 2dB, tops. A race muffler is the loudest option. Dropping 10dB is going to be tough.

Ya, 10db is I big drop in sound energy.

The Db scale is log rhythmic, meaning a 2 db drop is about a 50 percent drop in total sound energy or pressure.

You have a very long way to go.

[n55jb4]

Originally Posted by justpete

Actually that's snooze quiet compared to a race muffler which is physically painful anywhere near the car. Headers, secondary delete, and a PE is seriously quiet by comparison.

Yeah, I never had such race muffler, but I can imagine. IMHO ideal setup for sound is PE + sec.cats delete - it gives that pure PE creamy sound but makes it a noticeably louder thanks to sec.cat delete. It's deep sound on cold starts and very nice sound under load, but still can scream when under WOT, especially in tunnels it's a F1 sound while still staying civil when driven calmly - that setup is best of both worlds! However, in OP case he went towards extra gains from catless headers and thus made his life more complicated and is facing a dilemma now. He definitely needs to put some smaller muffler in between his headers and PE or put back sec.cats - they will quite down exhaust for sure, but I don't know if he has them deleted or not

[tdavis42]

I think my soulution is an E46 M3.

[Taskmaster]

Probably.

[tdavis42]

At least it has a dip stick
https://phoenix.craigslist.org/nph/cto/5908915128.html

[Ruddigger]

I swear my car was quieter straight piped than with my current muffler. I need to either cut it back off or find a different one.

[n55jb4]

Originally Posted by tdavis42

At least it has a dip stick
https://phoenix.craigslist.org/nph/cto/5908915128.html

That M3 is nice, but I'm thinking 335xi with single turbo or M5 as my next car

[JayTriggy14]

Add a Vibrant Resonator to the mid-pipe. That will cut the sound by 20-30%

[tdavis42]

I don't like turbos yet and M5 is a bit much for me maintenance wise and size wise.

[Ruddigger]

Originally Posted by JayTriggy14

Add a Vibrant Resonator to the mid-pipe. That will cut the sound by 20-30%

Not really. I have 2 vibrant resonators.

[Mike.]

Originally Posted by tdavis42

I don't like turbos yet and M5 is a bit much for me maintenance wise and size wise.

I had this same mantra, then a RKtuned f30 335xi happened.