resonator delete or muffler delete for e92 335?

hipnotic · 01-21-2011, 05:17 PM

I want to do something with the stock exhaust. I want something louder than the stock exhaust, but not too obnoxious and not too expensive. I am not into the performance gain stuff but just want my car to be louder than stock. I have e92 335i and would like some input. I was leaning towards doing either a muffler delete or a resonator delete. However I heard that the muffler delete drones quite a bit and that it can get pretty loud. I thought the resonator delete is only for the e90 and the e92 do not have a resonator. Will correct me if I am wrong. However if you guys got any other opinions that would be great. I do not want to spend more than 150-200 bucks at the muffler shop and don't want to get a whole exhaust system.

kmoto · 01-21-2011, 07:23 PM

Haha, I see you still haven't pulled the trigger.

Haven't searched much about it but what if you deleted the secondaries & xpipe/resonator at the mid section? Just go straight pipes from the primaries to mufflers?

stratplaya06 · 01-21-2011, 07:34 PM

No resonators on e92 335's, so rule that option out lol.

kmoto · 01-21-2011, 07:46 PM

Okay fine. X pipe in a box/housing haha.

Bagelfast · 01-21-2011, 08:30 PM

Quote:

Originally Posted by kmoto335i

Okay fine. X pipe in a box/housing haha.

The E92 already has a small non-restrictive X-pipe system.. For around 80-100 bucks you can delete the secondary cats and get straight pipes. Sounds nice

tofu- · 01-21-2011, 08:59 PM

Quote:

Originally Posted by josh06lau

I do not want to spend more than 150-200 bucks at the muffler shop and don't want to get a whole exhaust system.

then don't waste your time.

completely my opinion, but all of the muffler delete videos i have seen/heard sound like crap.

i think HPF gets away with their unmuffled exhaust system because of the smaller pipe diameter

Forcefed3 · 01-21-2011, 09:09 PM

Quote:

Originally Posted by tofu-

Quote:

Originally Posted by josh06lau

I do not want to spend more than 150-200 bucks at the muffler shop and don't want to get a whole exhaust system.

then don't waste your time.

completely my opinion, but all of the muffler delete videos i have seen/heard sound like crap.

i think HPF gets away with their unmuffled exhaust system because of the smaller pipe diameter

Actually HPF has the largest exhaust at 3.5"

gaifaun · 01-21-2011, 09:15 PM

Quote:

Originally Posted by 1LUMI335

The E92 already has a small non-restrictive X-pipe system.. For around 80-100 bucks you can delete the secondary cats and get straight pipes. Sounds nice

i cannot believe labor is so cheap down south!

OP: you can delete your secondary cats, but thats about it for the E92 system. Another alternative is you can get downpipes and leave the stock cats back in, but this method is more than your budget but you would get nice sound and more performance from that.

tofu- · 01-21-2011, 09:24 PM

Quote:

Originally Posted by gbreeE90

Actually HPF has the largest exhaust at 3.5"

it's a single pipe, not dual 2.5" pipes

hipnotic · 01-22-2011, 01:17 AM

deleting secondary cats will that void warranty? Also, in the future will i run into problem such as smog check or computer errors? And how much louder is this going to make it compared to the golf tee mod?

Bagelfast · 01-22-2011, 01:20 AM

Quote:

Originally Posted by gaifaun

i cannot believe labor is so cheap down south!

OP: you can delete your secondary cats, but thats about it for the E92 system. Another alternative is you can get downpipes and leave the stock cats back in, but this method is more than your budget but you would get nice sound and more performance from that.

+1....

Funny thing is, i went to sell the cats at a metal junk yard and they gave me 40-50 for each cat, so the removal of the sec. cats was basically free, paid for itself.

Quote:

Originally Posted by josh06lau

deleting secondary cats will that void warranty? Also, in the future will i run into problem such as smog check or computer errors? And how much louder is this going to make it compared to the golf tee mod?

Anything you do can give the dealer ammo to void somewhat of your warranty.. Deleting the secondary cats or muffler they can def bother u.

You will not run into a computer error of any kind in the future, and it will give it a more pronounced exhaust tone, without droning and being crazy loud. It makes the exhaust tone deeper and richer

Muffler delete is more on the loud loud side, and sacrifice getting drone aswell for the loudness. Some people have reported having excessive rasp from muffler delete aswell but everyone ears are different to what they like.

hipnotic · 01-22-2011, 01:24 AM

so i just tell the shop to remove my secondary cats and put 2 straight pipes instead while keeping everything else stock?

hipnotic · 01-22-2011, 01:25 AM

by the way what is the purpose of having secondary cats. sorry i am a newb when it comes to exhaust.

Bagelfast · 01-22-2011, 01:27 AM

Quote:

Originally Posted by josh06lau

by the way what is the purpose of having secondary cats. sorry i am a newb when it comes to exhaust.

Here is my thread on my exhaust adventure:
http://www.e90post.com/forums/showthread.php?t=468294
NOTE: the e92 doesnt have a resonator as seen in my thread for my E90.

Secondary Cats (aswell as primary cats) are for emmsions purposes.. Primary cats have sensors, seconadary cats dont.

hipnotic · 01-22-2011, 01:34 AM

so if secondary cats purpose is for emission it will be able to pass smog checks in the future?

hipnotic · 01-22-2011, 01:37 AM

the video sounds good. So there is no droning at all when driving?

Bagelfast · 01-22-2011, 01:39 AM

Quote:

Originally Posted by josh06lau

so if secondary cats purpose is for emission it will be able to pass smog checks in the future?

Not sure how that works in CALI... in Ny inspection i have no problem what so ever.

Quote:

Originally Posted by josh06lau

the video sounds good. So there is no droning at all when driving?

Not drone what so ever with the resonator and secondary cats removed!
But not sure how having a x-pipe with no secondary cats would be any different which i doubt compared to mine, there def wont be any drone.

hipnotic · 01-22-2011, 01:41 AM

the e92 don't have a resonator correct? So should i get rid of the x pipe along with the secondary cats or just the secondary cats? Will the x pipe make that much of a difference?

Bagelfast · 01-22-2011, 10:57 AM

Quote:

Originally Posted by josh06lau

the e92 don't have a resonator correct? So should i get rid of the x pipe along with the secondary cats or just the secondary cats? Will the x pipe make that much of a difference?

Correct... Leave the X-pipe and remove the secondary cats. Or remove the mufflers only.

cn555ic · 01-22-2011, 11:02 AM

Quote:

Originally Posted by 1LUMI335

Correct... Leave the X-pipe and remove the secondary cats. Or remove the mufflers only.

+1 Do not remove the x-pipe as that helps reduce the drone and the rasp...

hipnotic · 01-22-2011, 07:57 PM

anybody have videos of a e92 335i with secondary cats deleted? I heard it on a e90 335i with a resonator delete and a secondary cat delete and it sounds good.

Forcefed3 · 01-22-2011, 08:01 PM

I heard two cars with muffler delete today, do it.

01-21-2011, 05:17 PM	#1
hipnotic Major General 153 Rep 6,603 Posts Drives: e92 335i Join Date: Oct 2007 Location: So. Cal iTrader: (7) Garage List 2008 335i coupe [7.00]	resonator delete or muffler delete for e92 335? I want to do something with the stock exhaust. I want something louder than the stock exhaust, but not too obnoxious and not too expensive. I am not into the performance gain stuff but just want my car to be louder than stock. I have e92 335i and would like some input. I was leaning towards doing either a muffler delete or a resonator delete. However I heard that the muffler delete drones quite a bit and that it can get pretty loud. I thought the resonator delete is only for the e90 and the e92 do not have a resonator. Will correct me if I am wrong. However if you guys got any other opinions that would be great. I do not want to spend more than 150-200 bucks at the muffler shop and don't want to get a whole exhaust system.
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01-21-2011, 07:23 PM	#2
kmoto vroom 68 Rep 1,032 Posts Drives: Grocery Getter Join Date: Oct 2010 Location: Torrance iTrader: (4) Garage List 2023 G80 M3 Comp [0.00] 2020 F82 M4 [0.00] 2018 BMW 440i [0.00] 2015 BMW 328i [0.00] 2007 335i e92 [10.00]	Haha, I see you still haven't pulled the trigger. Haven't searched much about it but what if you deleted the secondaries & xpipe/resonator at the mid section? Just go straight pipes from the primaries to mufflers?
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01-21-2011, 07:34 PM	#3
stratplaya06 Captain 47 Rep 967 Posts Drives: 2008 E92 335xi-SOLD 5.0 Miata Join Date: May 2008 Location: Maryland iTrader: (10)	No resonators on e92 335's, so rule that option out lol. __________________ \| PROcede Rev3 \| Vishnu Meth \| DCI \| BMW Perf. Exhaust \| AR Coated/Catless \| CP-E FMIC \| Quaife \|
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01-21-2011, 07:46 PM	#4
kmoto vroom 68 Rep 1,032 Posts Drives: Grocery Getter Join Date: Oct 2010 Location: Torrance iTrader: (4) Garage List 2023 G80 M3 Comp [0.00] 2020 F82 M4 [0.00] 2018 BMW 440i [0.00] 2015 BMW 328i [0.00] 2007 335i e92 [10.00]	Okay fine. X pipe in a box/housing haha.
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01-22-2011, 01:17 AM	#10
hipnotic Major General 153 Rep 6,603 Posts Drives: e92 335i Join Date: Oct 2007 Location: So. Cal iTrader: (7) Garage List 2008 335i coupe [7.00]	deleting secondary cats will that void warranty? Also, in the future will i run into problem such as smog check or computer errors? And how much louder is this going to make it compared to the golf tee mod?
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01-22-2011, 01:24 AM	#12
hipnotic Major General 153 Rep 6,603 Posts Drives: e92 335i Join Date: Oct 2007 Location: So. Cal iTrader: (7) Garage List 2008 335i coupe [7.00]	so i just tell the shop to remove my secondary cats and put 2 straight pipes instead while keeping everything else stock?
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01-22-2011, 01:25 AM	#13
hipnotic Major General 153 Rep 6,603 Posts Drives: e92 335i Join Date: Oct 2007 Location: So. Cal iTrader: (7) Garage List 2008 335i coupe [7.00]	by the way what is the purpose of having secondary cats. sorry i am a newb when it comes to exhaust.
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01-22-2011, 01:34 AM	#15
hipnotic Major General 153 Rep 6,603 Posts Drives: e92 335i Join Date: Oct 2007 Location: So. Cal iTrader: (7) Garage List 2008 335i coupe [7.00]	so if secondary cats purpose is for emission it will be able to pass smog checks in the future?
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01-22-2011, 01:37 AM	#16
hipnotic Major General 153 Rep 6,603 Posts Drives: e92 335i Join Date: Oct 2007 Location: So. Cal iTrader: (7) Garage List 2008 335i coupe [7.00]	the video sounds good. So there is no droning at all when driving?
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01-22-2011, 01:41 AM	#18
hipnotic Major General 153 Rep 6,603 Posts Drives: e92 335i Join Date: Oct 2007 Location: So. Cal iTrader: (7) Garage List 2008 335i coupe [7.00]	the e92 don't have a resonator correct? So should i get rid of the x pipe along with the secondary cats or just the secondary cats? Will the x pipe make that much of a difference?
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01-22-2011, 07:57 PM	#21
hipnotic Major General 153 Rep 6,603 Posts Drives: e92 335i Join Date: Oct 2007 Location: So. Cal iTrader: (7) Garage List 2008 335i coupe [7.00]	anybody have videos of a e92 335i with secondary cats deleted? I heard it on a e90 335i with a resonator delete and a secondary cat delete and it sounds good.
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01-22-2011, 08:01 PM	#22
Forcefed3 Banned 131 Rep 4,732 Posts Drives: 2008 335i Join Date: May 2010 Location: South iTrader: (2) Garage List 2008 335i [1.00]	I heard two cars with muffler delete today, do it.
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