resonated test pipes vs non-resonated: what did you get and why?

Freiheit · 04-23-2021, 07:53 AM

Its time to go to Stage 2, so I've been shopping for test pipes.

I remember that resonators have been used on E46 M3 exhausts to mitigate the raspy note, and I figured that pulling the cats out of the primary pipes might introduce rasp, so I started looking for resonated pipes. Rogue used to offer them but stopped, and I don't see anyone else who does. Is there a reason for this?

You guys who have heard both, could you please describe the difference in sound character between the two versions of pipes?

pbonsalb · 04-23-2021, 08:08 AM

Not much space in primary car location for resonators. If you are buying a complete X pipe, I would buy a resonated one. Mine has 4 resonators and with a Megan rear it is louder than I would like. If just deleting the primary cats on a stick pipe, the rear cats will muffle a bit. Sound will obviously vary considerably depending on the rear exhaust used. When I run my stock x-pipe with the Megan rear, the sound is much tamer.

Freiheit · 04-23-2021, 08:36 AM

Quote:

Originally Posted by pbonsalb

Not much space in primary car location for resonators. If you are buying a complete X pipe, I would buy a resonated one. Mine has 4 resonators and with a Megan rear it is louder than I would like. If just deleting the primary cats on a stick pipe, the rear cats will muffle a bit. Sound will obviously vary considerably depending on the rear exhaust used. When I run my stock x-pipe with the Megan rear, the sound is much tamer.

I'm not going to go to an aftermarket x pipe. I picked up a spare stock section and I'll mod that with test pipes so I can switch back to stock if I want.

How much did you pay for the Megan and how do you like it? I currently have the Remus Race. It sounds spectacular in concrete canyons, going up/down ramps, in parking garages, etc, but I enjoy playing around with muffler changes so I always have an ear open to try other exhausts.

blowbackpolicy · 04-23-2021, 08:51 AM

I've had my Megan for five years and 75k miles and it's still working great! I went with a dual resonated x-pipe but recently deleted the two resonators. I personally think it sounds much better without any resonators. I was worried due to what everyone says about rasp etc. but I really don't think it's bad at all. I think it sounds amazing.

Freiheit · 04-23-2021, 09:18 AM

Quote:

Originally Posted by blowbackpolicy

I've had my Megan for five years and 75k miles and it's still working great! I went with a dual resonated x-pipe but recently deleted the two resonators. I personally think it sounds much better without any resonators. I was worried due to what everyone says about rasp etc. but I really don't think it's bad at all. I think it sounds amazing.

I've read that the Megan exposes a cabin resonance at 3k, so does my Remus. I gotta wonder which one is quieter. I'll have to look around my area for someone who has the Megan to compare.

drwankel · 04-23-2021, 10:01 AM

I looked into this as well. Nobody seems to currently sell resonated test pipes. If your goal is to mitigate rasp, choose a rear section that doesn't respond poorly to having the main cats removed.

CPWINCH · 05-01-2021, 05:31 PM

I believe it was Macht Schnell who used to sell resonated test pipes. Resonators are a must on any exhaust set up imo.

Zero flow reduction, and rasp elimination.

Freiheit · 05-02-2021, 07:33 PM

Quote:

Originally Posted by CPWINCH

I believe it was Macht Schnell who used to sell resonated test pipes. Resonators are a must on any exhaust set up imo.

Zero flow reduction, and rasp elimination.

I never saw those at Macht, but I know Rogue Engineering sold them.

pjk380 · 05-02-2021, 07:43 PM

I looked at Rogue resonated test pipes a while back too. I am not sure why they stopped selling them. I was told its not a good idea to install resonators so close to the headers, too much heat and that resonators wont last. Maybe that's why Rogue stopped selling them..

Redd · 05-02-2021, 08:24 PM

I went with zero resonators cos I like a really high pitch sound, and I wanted it loud! Love the exhaust but it does rasp. I have a valved muffler so I can switch it to quiet mode and that gets rid of the rasp/volume for when I want it to be quiet.

seamax319 · 05-04-2021, 11:03 AM

Topspeed carries a quad resonated x-pipe

https://topspeedauto.com/bmw-e92-e93...d-x-pipe-63mm/

Here's the review...
https://www.m3post.com/forums/showthread.php?t=1208810

drwankel · 05-04-2021, 11:43 AM

Just to simplify the ask... nobody currently sells a resonated test pipe that I am aware of.

Not Sure · 05-04-2021, 01:34 PM

rogue might sell you the resonated version if you call and ask for them. that's what they told me a few months ago.

Freiheit · 05-04-2021, 10:20 PM

Quote:

Originally Posted by Not Sure

rogue might sell you the resonated version if you call and ask for them. that's what they told me a few months ago.

I'll try that, thanks.

04-23-2021, 07:53 AM	#1
Freiheit Captain 492 Rep 675 Posts Drives: 2011 Competition Coupe Join Date: Jul 2017 Location: Southeast iTrader: (0)	resonated test pipes vs non-resonated: what did you get and why? Its time to go to Stage 2, so I've been shopping for test pipes. I remember that resonators have been used on E46 M3 exhausts to mitigate the raspy note, and I figured that pulling the cats out of the primary pipes might introduce rasp, so I started looking for resonated pipes. Rogue used to offer them but stopped, and I don't see anyone else who does. Is there a reason for this? You guys who have heard both, could you please describe the difference in sound character between the two versions of pipes? __________________ Dinan Stg II Suspension • Remus Race • Gintani CF lip / CF quarter fins • Vorsteiner Type II CF Diffuser • BMW Performance CF Spoiler / black fender gills / black kidney grilles / CF mirror cover • Speed Element GTS CF side skirts • M3 GTS door sills • Lux Angel Eyes • body color reflectors • Alex@Alpine Stg I tune • AA filter
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04-23-2021, 08:08 AM	#2
pbonsalb Lieutenant General 5228 Rep 10,611 Posts Drives: 18 F90 M5, 99 E36 M3 Turbo Join Date: Feb 2011 Location: New England iTrader: (4)	Not much space in primary car location for resonators. If you are buying a complete X pipe, I would buy a resonated one. Mine has 4 resonators and with a Megan rear it is louder than I would like. If just deleting the primary cats on a stick pipe, the rear cats will muffle a bit. Sound will obviously vary considerably depending on the rear exhaust used. When I run my stock x-pipe with the Megan rear, the sound is much tamer.
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04-23-2021, 08:51 AM	#4
blowbackpolicy Private First Class 94 Rep 114 Posts Drives: e92 M3 Join Date: Jan 2017 Location: Texas iTrader: (0)	I've had my Megan for five years and 75k miles and it's still working great! I went with a dual resonated x-pipe but recently deleted the two resonators. I personally think it sounds much better without any resonators. I was worried due to what everyone says about rasp etc. but I really don't think it's bad at all. I think it sounds amazing. __________________ ARC-8 Wheels - Stoptech Trophy BBK - Solid Subframe Bushings - Purple Diff Bushings - Topspeed X-pipe - Megan Catback - AFE Carbon Intake - RE Pullies - BPM Tune - GAS Monoballs - ECS Front Sway - GTS Wing - Autosolutions SSK - Vibratechnics Motor Mounts - Revshift Tranny Mounts - VAC Bearings - Bilstein PSS10 Coilovers - Dinan Camber Plates - Ultra Front Strut Bar - BSW Ghost Subs - Matek Diffuser
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04-23-2021, 10:01 AM	#6
drwankel Major 1035 Rep 1,044 Posts Drives: 2012 E92 M3 ZCP, 2021 M340i Join Date: Feb 2016 Location: Bothell, WA iTrader: (0)	I looked into this as well. Nobody seems to currently sell resonated test pipes. If your goal is to mitigate rasp, choose a rear section that doesn't respond poorly to having the main cats removed.
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05-01-2021, 05:31 PM	#7
CPWINCH Brigadier General 732 Rep 4,635 Posts Drives: Toyota Prius Join Date: May 2010 Location: Los Angeles iTrader: (7)	I believe it was Macht Schnell who used to sell resonated test pipes. Resonators are a must on any exhaust set up imo. Zero flow reduction, and rasp elimination. __________________ Follow my BMW instagram @CARMODIFICATION Let me know you are from bimmerpost and i'll follow back
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05-02-2021, 07:43 PM	#9
pjk380 Private First Class 88 Rep 163 Posts Drives: 2010 E92 M3 Join Date: Feb 2016 Location: Yorba Linda, CA iTrader: (0)	I looked at Rogue resonated test pipes a while back too. I am not sure why they stopped selling them. I was told its not a good idea to install resonators so close to the headers, too much heat and that resonators wont last. Maybe that's why Rogue stopped selling them..
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05-02-2021, 08:24 PM	#10
Redd Brigadier General 3897 Rep 4,160 Posts Drives: 2010 BMW E92 M3 Dakar Edition Join Date: Jul 2015 Location: Malaysia iTrader: (0)	I went with zero resonators cos I like a really high pitch sound, and I wanted it loud! Love the exhaust but it does rasp. I have a valved muffler so I can switch it to quiet mode and that gets rid of the rasp/volume for when I want it to be quiet.
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05-04-2021, 11:03 AM	#11
seamax319 Private 23 Rep 95 Posts Drives: BMW E93 M3 Join Date: Apr 2020 Location: OR iTrader: (2)	Topspeed carries a quad resonated x-pipe https://topspeedauto.com/bmw-e92-e93...d-x-pipe-63mm/ Here's the review... https://www.m3post.com/forums/showthread.php?t=1208810
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05-04-2021, 11:43 AM	#12
drwankel Major 1035 Rep 1,044 Posts Drives: 2012 E92 M3 ZCP, 2021 M340i Join Date: Feb 2016 Location: Bothell, WA iTrader: (0)	Just to simplify the ask... nobody currently sells a resonated test pipe that I am aware of.
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05-04-2021, 01:34 PM	#13
Not Sure Second Lieutenant 213 Rep 283 Posts Drives: 2013 E92 M3 Join Date: Jul 2017 Location: Mich iTrader: (0)	rogue might sell you the resonated version if you call and ask for them. that's what they told me a few months ago.
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