Exhaust Mod Options?

richpike · 12-17-2011, 03:58 PM

Hi Guys,

I'd like to get a little throatier sound out of my 335 (2010 E90 Auto if that makes a difference). I've done a ton of searching, but the main mod (short of an exhaust swap) that comes up is the golf tee mod. I've tried that and didn't notice any difference. I've also looked at the muffler delete, but think that might be a touch too loud. I'd like something in between and wanted to see if there was an option I am missing before going down the new exhaust path.

TIA.
Rich

E92_SID · 12-17-2011, 09:37 PM

Are you sure you did the golf tee mod correctly? Did you cut and plug the vacume tube or did you disconnect the electronic plug in the back? If you did it right you should see a very noticeable difference in sound on cold starts and under acceleration.

richpike · 12-17-2011, 09:41 PM

Quote:

Originally Posted by E92_SID

Are you sure you did the golf tee mod correctly? Did you cut and plug the vacume tube or did you disconnect the electronic plug in the back? If you did it right you should see a very noticeable difference in sound on cold starts and under acceleration.

I think I did it right

. I did it by unplugging the connector. Should I try it with the "real" golf tee? I had done it on my previous E90 (330) and didn't notice much on it either, but it was not dual exhaust like the 335.

Thanks,
Rich

richpike · 12-19-2011, 03:06 PM

Quote:

Originally Posted by richpike

I think I did it right

. I did it by unplugging the connector. Should I try it with the "real" golf tee? I had done it on my previous E90 (330) and didn't notice much on it either, but it was not dual exhaust like the 335.

Thanks,
Rich

I tried it again this weekend and I just don't notice that big of a difference. I also checked and the flap stays open once the car is warmed up (I plugged back in the wire and looked at the car running after it was warmed up and the flap was open), so it doesn't help except on cold starts and the first few minutes of driving.

Regardless, thanks for the idea. Any other thoughts? Has anyone tried hollowing out their mufflers/resonators? Not sure if that even makes sense on our cars, but thought I'd check. Probably a dumb question, but do tips make any difference?

Rich

Dackz · 12-19-2011, 04:00 PM

Quote:

Originally Posted by richpike

I tried it again this weekend and I just don't notice that big of a difference. I also checked and the flap stays open once the car is warmed up (I plugged back in the wire and looked at the car running after it was warmed up and the flap was open), so it doesn't help except on cold starts and the first few minutes of driving.

Regardless, thanks for the idea. Any other thoughts? Has anyone tried hollowing out their mufflers/resonators? Not sure if that even makes sense on our cars, but thought I'd check. Probably a dumb question, but do tips make any difference?

Rich

Tips wont change it much. You will either need new downpipes, removal of resonators, or a new catback system. Nothing small will change it enough to make it a bit louder or deeper.

richpike · 12-19-2011, 04:01 PM

Quote:

Originally Posted by Dackz

Tips wont change it much. You will either need new downpipes, removal of resonators, or a new catback system. Nothing small will change it enough to make it a bit louder or deeper.

That's what I was afraid of, but just wanted to make sure I wasn't missing something. BMWPE it is!

Thanks,
Rich

Dackz · 12-19-2011, 04:07 PM

Quote:

Originally Posted by richpike

That's what I was afraid of, but just wanted to make sure I wasn't missing something. BMWPE it is!

Thanks,
Rich

Believe me, you will love it. The tips you might not like (I sure didnt) but the sound is amazing but never intrusive. Its not cheap but IMO it sounds the best. Just beware that the sound would change on the car if you go with DP's later. For this reason, I wont ever put DP's on, as I love the sound of the exhaust too much, its just 'perfect'

E92_SID · 12-19-2011, 05:05 PM

Get a V8!

Problem solved!

Dackz · 12-19-2011, 05:42 PM

Quote:

Originally Posted by E92_SID

Get a V8!

Problem solved!

I like my ~25 mpg around town town/highway mix. I really like my 30mpg on the highway, and I like being faster then M3's

No, lets not go back down to lower elevations for that argument.

raceyBMW · 12-19-2011, 05:43 PM

E90 has a mid-pipe resonator whereas the E92 only has an x-pipe. This makes quite a difference in the sound after the golf-tee mod is done...I did it to an E90 335i (N54) loaner once (ssshhh, don't tell) and noticed it didn't make much difference.

I think you can cut out the muffler as long as you leave the resonator in there and it should sound pretty good...might also be able to cut out the resonator and just do an x-pipe install and should make it more throaty.

Tips won't do anything.

richpike · 12-19-2011, 05:47 PM

Quote:

Originally Posted by E92_SID

Get a V8!

Problem solved!

Ha! I hate to admit it, but everytime I hear a Mustang GT my heart skips a beat. I'd buy a new 5.0 one in a heart beat if my wife would let me

Having said that, I still think, for where we live, the 335 is the perfect combination of power, refinement, style, reliability, value, tunability, etc, etc. The only thing that comes close (IMHO) is a B8 S4.

-Rich

Dackz · 12-19-2011, 11:05 PM

Quote:

Originally Posted by raceyBMW

E90 has a mid-pipe resonator whereas the E92 only has an x-pipe. This makes quite a difference in the sound after the golf-tee mod is done...I did it to an E90 335i (N54) loaner once (ssshhh, don't tell) and noticed it didn't make much difference.

I think you can cut out the muffler as long as you leave the resonator in there and it should sound pretty good...might also be able to cut out the resonator and just do an x-pipe install and should make it more throaty.

Tips won't do anything.

Totally forgot about the x-pipe, but the PE comes with the x-pipe on the sedan, as where on the coupe its just the mufflers.

I did the golf-tee to mine and I didnt think it did very much, hence going with the PE.

richpike · 12-19-2011, 11:17 PM

Quote:

Originally Posted by raceyBMW

E90 has a mid-pipe resonator whereas the E92 only has an x-pipe. This makes quite a difference in the sound after the golf-tee mod is done...I did it to an E90 335i (N54) loaner once (ssshhh, don't tell) and noticed it didn't make much difference.

I think you can cut out the muffler as long as you leave the resonator in there and it should sound pretty good...might also be able to cut out the resonator and just do an x-pipe install and should make it more throaty.

Tips won't do anything.

I wonder what replacing the mid pipe resonator with an x-pipe would do to the sound. Thanks for the insight!

Rich

ar design · 12-21-2011, 12:53 PM

Catless downpipes will give the car a throatier sound without creating drone, give me a call and we can discuss some options for you!

12-17-2011, 03:58 PM	#1
richpike Captain Drives: L322 RR, E90 335i Join Date: Oct 2008 Location: CO - 6500ft ASL Posts: 662 iTrader: (1)	Exhaust Mod Options? Hi Guys, I'd like to get a little throatier sound out of my 335 (2010 E90 Auto if that makes a difference). I've done a ton of searching, but the main mod (short of an exhaust swap) that comes up is the golf tee mod. I've tried that and didn't notice any difference. I've also looked at the muffler delete, but think that might be a touch too loud. I'd like something in between and wanted to see if there was an option I am missing before going down the new exhaust path. TIA. Rich
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12-17-2011, 09:37 PM	#2
E92_SID Brigadier General Drives: 2011.5 MR/BB E92 M3 Join Date: Jan 2008 Location: Denver, CO. USA Posts: 3,012 iTrader: (2)	Are you sure you did the golf tee mod correctly? Did you cut and plug the vacume tube or did you disconnect the electronic plug in the back? If you did it right you should see a very noticeable difference in sound on cold starts and under acceleration. __________________ 2011/E92/M3/MR/BB/ZCV/ZP2/EDC/2MT
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12-19-2011, 05:05 PM	#8
E92_SID Brigadier General Drives: 2011.5 MR/BB E92 M3 Join Date: Jan 2008 Location: Denver, CO. USA Posts: 3,012 iTrader: (2)	Get a V8! Problem solved! __________________ 2011/E92/M3/MR/BB/ZCV/ZP2/EDC/2MT
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12-19-2011, 05:43 PM	#10
raceyBMW king of the hills Drives: 335i coupe Join Date: Dec 2006 Location: Denver, CO Posts: 2,729 iTrader: (1) Garage List 1994 530i [4.25] 2007 335i Coupe [4.07]	E90 has a mid-pipe resonator whereas the E92 only has an x-pipe. This makes quite a difference in the sound after the golf-tee mod is done...I did it to an E90 335i (N54) loaner once (ssshhh, don't tell) and noticed it didn't make much difference. I think you can cut out the muffler as long as you leave the resonator in there and it should sound pretty good...might also be able to cut out the resonator and just do an x-pipe install and should make it more throaty. Tips won't do anything.
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12-21-2011, 12:53 PM	#14
ar design Drives: '86 325ES+S50, '01 TT QC Join Date: Jan 2008 Location: Denver, CO Posts: 4,408 iTrader: (9) Garage List 1965 Mercedes 190c [0.00] 1986 BMW 325ES [0.00] 2001 Audi TT Quattro [5.00]	Catless downpipes will give the car a throatier sound without creating drone, give me a call and we can discuss some options for you!
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