resonator removal on a n55?

135rampo · 04-21-2015, 06:51 AM

How much extra sound am i looking at ? and will i get a lot more drone?

Thanks

Cavpilot2k · 04-21-2015, 08:23 AM

I have a no-resonator Y-Pipe with my BMW PE (so other than the PE muffler, the only restriction is the stock DP). And I think it sounds lovely. It is loud on cold starts, but not obnoxiously so (just don't ask my GF).
During driving I think it is just the right volume, and I don't get drone except at a few limited RPM ranges, and only when under light load, but even that I don't find annoying at all. No rasp whatsoever.

What is the rest of your exhaust? Stock?
If so, I think you would get a nice bump in sound. Pait that with a golf-tee mod, and you are all set.

AyJay87 · 04-21-2015, 09:57 AM

I have the PE muffler installed only. I didn't install the res-deleted mid pipe for fear of drone. The muffler alone provides improved bass tones.

Cavpilot2k · 04-21-2015, 10:48 AM

Quote:

Originally Posted by AyJay87

I have the PE muffler installed only. I didn't install the res-deleted mid pipe for fear of drone. The muffler alone provides improved bass tones.

With stock DP, I don't think drone is an issue, except in transient RPM ranges (about 1800-2100) under light load, but I have not found it annoying in the least. But, peoples' sensitivity to such things is a huge variable. I for one am happy to have no resonator.

This is assuming we are talking about N55 with no secondary cat. If you are N54 and have a secondary cat, you REALLY don't need a resonator.

135rampo · 04-21-2015, 11:02 AM

Quote:

Originally Posted by Cavpilot2k

I have a no-resonator Y-Pipe with my BMW PE (so other than the PE muffler, the only restriction is the stock DP). And I think it sounds lovely. It is loud on cold starts, but not obnoxiously so (just don't ask my GF).
During driving I think it is just the right volume, and I don't get drone except at a few limited RPM ranges, and only when under light load, but even that I don't find annoying at all. No rasp whatsoever.

What is the rest of your exhaust? Stock?
If so, I think you would get a nice bump in sound. Pait that with a golf-tee mod, and you are all set.

I have a eisenmann race back box and cobb stage 1 agressive map

135rampo · 04-21-2015, 11:04 AM

Quote:

Originally Posted by Cavpilot2k

With stock DP, I don't think drone is an issue, except in transient RPM ranges (about 1800-2100) under light load, but I have not found it annoying in the least. But, peoples' sensitivity to such things is a huge variable. I for one am happy to have no resonator.

This is assuming we are talking about N55 with no secondary cat. If you are N54 and have a secondary cat, you REALLY don't need a resonator.

Im a N55 so already catless

Esteban · 04-21-2015, 02:37 PM

I also have the no resonator y-pipe with the Performance exhaust and think it sounds great. I really don't have any drone to speak of. The no resonator y-pipe definitely adds a little volume to the sound.

NORAGRETS · 04-21-2015, 02:47 PM

The dealer did it for me when they installed my axle back way back when...never got charged for it...depends

04-21-2015, 06:51 AM	#1
135rampo Private 10 Rep 58 Posts Drives: focus rs mk2 Join Date: Jun 2014 Location: essex iTrader: (0)	resonator removal on a n55? How much extra sound am i looking at ? and will i get a lot more drone? Thanks
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04-21-2015, 08:23 AM	#2
Cavpilot2k Chief Warrant Officer 1025 Rep 1,638 Posts Drives: like a damn lunatic Join Date: Feb 2012 Location: Boston iTrader: (0)	I have a no-resonator Y-Pipe with my BMW PE (so other than the PE muffler, the only restriction is the stock DP). And I think it sounds lovely. It is loud on cold starts, but not obnoxiously so (just don't ask my GF). During driving I think it is just the right volume, and I don't get drone except at a few limited RPM ranges, and only when under light load, but even that I don't find annoying at all. No rasp whatsoever. What is the rest of your exhaust? Stock? If so, I think you would get a nice bump in sound. Pait that with a golf-tee mod, and you are all set. __________________ "Prius" is Latin for Eunuch. "Hrothgar": 2012 135i: 6MT M-Sport, BSM/Blk; Nav, Premium, Convenience, HK Dinan Stage 2 +PPK /// BMW PE /// VRSF CP /// K&N /// Koni Sports /// RSFB Inserts /// MPS4S 225/255 /// Other Stuff
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04-21-2015, 09:57 AM	#3
AyJay87 Private First Class 9 Rep 122 Posts Drives: 2012 135i DCT Le Mans Blue Join Date: Jul 2014 Location: SoCal iTrader: (0)	I have the PE muffler installed only. I didn't install the res-deleted mid pipe for fear of drone. The muffler alone provides improved bass tones. __________________ https://www.instagram.com/the_driving_gallery/ '12 135i DCT Le Mans Blue * M Sport Package * BMW Performance Exhaust * PPK 1 * ST Coilovers * Cobb Sway Bars * Dinan Camber Plates * VMR V705 Wheels * Michelin PSS
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04-21-2015, 02:37 PM	#7
Esteban Major General 44640 Rep 7,227 Posts Drives: a slow car fast Join Date: Jun 2014 Location: SoCal iTrader: (0)	I also have the no resonator y-pipe with the Performance exhaust and think it sounds great. I really don't have any drone to speak of. The no resonator y-pipe definitely adds a little volume to the sound. __________________
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04-21-2015, 02:47 PM	#8
NORAGRETS Colonel 460 Rep 2,089 Posts Drives: 2017 F80 M3 ZCP BSM 2012 E82 1 Join Date: May 2012 Location: Boston, MA iTrader: (0) Garage List 2017 BMW M3 ZCP LCI [0.00]	The dealer did it for me when they installed my axle back way back when...never got charged for it...depends __________________ 2017 F80 ZCP BSM - Klein Innovation. ActiveAutowerkes. AR Design. BootMod3 Paul Johnson. EvRw. Project Gamma. RW Carbon. UCP. UUC. Hawk. Dinan. NGK. Macht Schnell. TMS. VR. aFe. RIP - E82 135i - 7/7/2021
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