Best sounding Exhaust?

RyderSU · 05-05-2018, 11:08 AM

I was looking at the Downpipe and Catbypass by FabSpeed, which I love.

My question is, would it pass an emissions test? And If not, which exhaust should I get otherwise? I need it to pass emissions.

Yiruna · 05-05-2018, 11:41 AM

Quote:

Originally Posted by RyderSU

I was looking at the Downpipe and Catbypass by FabSpeed, which I love.

My question is, would it pass an emissions test? And If not, which exhaust should I get otherwise? I need it to pass emissions.

No aftermarket downpipe will pass emissions, I dont know about exhaust though

NO_USER_ · 05-05-2018, 12:15 PM

Akrapovic Exhaust!

I’ve had Dinan Resonator Delete, REMUS, and Eisenmann.

You simply can’t be Akrapovic, mines for sale.

I also suggest most to just start with a catted/catless downpipe and move up from there

But if you don’t want to deal with emissions, get a nice catback.

akkando · 05-05-2018, 02:13 PM

Quote:

Originally Posted by RyderSU

I was looking at the Downpipe and Catbypass by FabSpeed, which I love.

My question is, would it pass an emissions test? And If not, which exhaust should I get otherwise? I need it to pass emissions.

In some places at least, just having aftermarket is automatic emissions fail, doesn't matter if emissions are cleaner after mods, after market is automatic fail.

QM · 05-05-2018, 07:51 PM

Quote:

Originally Posted by akkando

Quote:

Originally Posted by RyderSU

I was looking at the Downpipe and Catbypass by FabSpeed, which I love.

My question is, would it pass an emissions test? And If not, which exhaust should I get otherwise? I need it to pass emissions.

In some places at least, just having aftermarket is automatic emissions fail, doesn't matter if emissions are cleaner after mods, after market is automatic fail.

If there is no CEL how would they know the downpipe is aftermarket? I'm my area, as I recall, they don't look under the car.

akkando · 05-05-2018, 08:57 PM

Quote:

Originally Posted by QM

If there is no CEL how would they know the downpipe is aftermarket? I'm my area, as I recall, they don't look under the car.

Visual inspection. Obviously if they don't bother to look, you pass.

eeyang92 · 05-08-2018, 04:37 PM

I just installed a Remus exhaust and it sounds awesome! It has a much more aggressive growl vs. stock. It is a bit pricey though.

nioh_lbbm2 · 05-08-2018, 06:55 PM

Quote:

Originally Posted by eeyang92

I just installed a Remus exhaust and it sounds awesome! It has a much more aggressive growl vs. stock. It is a bit pricey though.

How much louder than stock would you say it is?

DanG · 05-08-2018, 08:44 PM

I have the M Performance exhaust. Nice agressive sound until you hit the blue tooth remote. Then it is very load. (It has a warning that it doesn’t meet regulatory standards when in use).

eeyang92 · 05-09-2018, 02:31 AM

Quote:

Originally Posted by nioh_lbbm2

How much louder than stock would you say it is?

I'd say maybe 20-30% louder on cold start and under load. When idling/cruising it is roughly the same as stock. Although I wouldn't get it for the loudness itself - it's mostly the aggressive tone that I like!

No Boost · 05-09-2018, 03:28 AM

OP, Fabspeed sport cat DP will pass PA emissions with flying colors, me being a test case.

Benef1cient · 05-09-2018, 06:21 AM

I'm going Fabspeed and Remus - it's a magical combination.
Akra and all Ti exhausts are too high pitched and Remus has this deep growl + Fabspeed SC is going to enhance it even more. Highly recommend this setup.

six-n-twins53 · 05-09-2018, 09:41 AM

Fabspeed sportcat and Dinan sound great together

GreyF87 · 05-09-2018, 01:47 PM

Fabspeed DP With MPerformance exhaust

Xchange43 · 07-18-2018, 03:07 PM

What is the comparable sound with a Catless Wagner DP with the Dinan RD?

alscks0414 · 07-18-2018, 03:09 PM

Quote:

Originally Posted by tehboost

Akrapovic Exhaust!

I've had Dinan Resonator Delete, REMUS, and Eisenmann.

You simply can't be Akrapovic, mines for sale.

I also suggest most to just start with a catted/catless downpipe and move up from there

But if you don't want to deal with emissions, get a nice catback.

I dont mean to promote his sale but no doubt that Akrapovic sounds the best especially accompanied by Akrapovic catless downpipe, it will sound King on the road. But... they are not cheap. Used in good condition could be very good choice!

ipeefreely · 07-18-2018, 11:33 PM

I just recently installed the Remus exhaust in my car and it's about 20-30% louder than stock. Definitely has a deeper growl and cackles a bit now.

I'm happy with it for now but might go with a catted dp down the line.

FIDDIE · 07-19-2018, 02:58 AM

Quote:

Originally Posted by ipeefreely

I just recently installed the Remus exhaust in my car and it's about 20-30% louder than stock. Definitely has a deeper growl and cackles a bit now.

I'm happy with it for now but might go with a catted dp down the line.

Does it drones? (vs oem system)

cecaa850 · 07-19-2018, 06:39 AM

Quote:

Originally Posted by FIDDIE

Does it drones? (vs oem system)

I would think that most drone would be attributed to removing the resonator. I've asked previously if there are measurable gains by removing it but no one can seem to give me an answer. If I need more noise after I replace my cat I'll look for an axle back replacement.

ipeefreely · 07-19-2018, 09:25 AM

Quote:

Originally Posted by FIDDIE

Does it drones? (vs oem system)

Nope.

I also have a CG precision valve controller hooked up to it. That way, whenever I want some peace and quiet, I can always just close the valves in whatever mode i am in.

cecaa850 · 07-19-2018, 09:27 AM

Quote:

Originally Posted by ipeefreely

Nope.

I also have a CG precision valve controller hooked up to it. That way, whenever I want some peace and quiet, I can always just close the valves in whatever mode i am in.

Why go to catted down pipe then?

Fabspeed Motorsport · 07-19-2018, 11:16 AM

No cat bypass will pass emissions. There are ways to trick the emissions testing in some states but that is a different story. If you are worried about emissions the Fabspeed 200 cell Catted downpipe is the way to go. You will not have a problem passing emissions in in 49 out of the 50 states (sorry Ca) and I have not heard of anyone having an issue around the world.

05-05-2018, 11:08 AM	#1
RyderSU 2018 BMW M2 230 Rep 149 Posts Drives: 2018 BMW M2 - Widebody Join Date: May 2018 Location: Pennsylvania iTrader: (0) Garage List 2018 BMW M2 [0.00]	Best sounding Exhaust? I was looking at the Downpipe and Catbypass by FabSpeed, which I love. My question is, would it pass an emissions test? And If not, which exhaust should I get otherwise? I need it to pass emissions.
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05-05-2018, 12:15 PM	#3
NO_USER_ Captain 538 Rep 752 Posts Drives: . Join Date: Jan 2017 Location: . iTrader: (2)	Akrapovic Exhaust! I’ve had Dinan Resonator Delete, REMUS, and Eisenmann. You simply can’t be Akrapovic, mines for sale. I also suggest most to just start with a catted/catless downpipe and move up from there But if you don’t want to deal with emissions, get a nice catback.
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05-08-2018, 04:37 PM	#7
eeyang92 Captain 319 Rep 660 Posts Drives: LBB M2 LCI 6MT Join Date: Oct 2017 Location: CA iTrader: (0)	I just installed a Remus exhaust and it sounds awesome! It has a much more aggressive growl vs. stock. It is a bit pricey though.
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05-08-2018, 08:44 PM	#9
DanG Major General 10658 Rep 6,937 Posts Drives: 2018 M2 AW DCT Join Date: Aug 2012 Location: Seattle, WA iTrader: (1) Garage List 2018 BMW M2 [7.68]	I have the M Performance exhaust. Nice agressive sound until you hit the blue tooth remote. Then it is very load. (It has a warning that it doesn’t meet regulatory standards when in use).
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05-09-2018, 03:28 AM	#11
No Boost enthusiasm > practicality 4021 Rep 2,247 Posts Drives: 987 CS \| G35x Join Date: Oct 2016 Location: Chester County, PA iTrader: (0) Garage List 2007 987.1 Cayman S [10.00] 2008 Infiniti G35x ... [0.00]	OP, Fabspeed sport cat DP will pass PA emissions with flying colors, me being a test case. __________________ FSI 3.8L Stg II\|6MT\|SOUL\|IPD+GT3 TB\|Numeric Racing\|KW\|Tarett\|Rennline\|Raceseng\|APEX\|Recaro\|7.3 lb/hp VQ35HR\|5AT\|Stillen\|FI\|UpRev tune 8k rpm\|TransGo\|Hotchkis\|Whiteline\|H&R\|Z1\|Corbeau\|R1 Concepts\|10 lb/hp Left lane campers, GTFO!
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05-09-2018, 06:21 AM	#12
Benef1cient First Lieutenant 287 Rep 344 Posts Drives: '18 LBB M2 LCI 6MT Join Date: Jan 2017 Location: Poland iTrader: (0)	I'm going Fabspeed and Remus - it's a magical combination. Akra and all Ti exhausts are too high pitched and Remus has this deep growl + Fabspeed SC is going to enhance it even more. Highly recommend this setup.
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05-09-2018, 09:41 AM	#13
six-n-twins53 Amateur Tattoo Artist 809 Rep 700 Posts Drives: 2018 M3 zcp Join Date: Apr 2016 Location: Ohio iTrader: (1)	Fabspeed sportcat and Dinan sound great together
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05-09-2018, 01:47 PM	#14
GreyF87 HawaiiM2 31 Rep 88 Posts Drives: 2017 M2, 05 G35 Join Date: Aug 2016 Location: Honolulu. Hawaii iTrader: (0)	Fabspeed DP With MPerformance exhaust __________________ MSR Intake, CTS IC, Fabspeed DP, FTP Charge Pipe,3d Design Guage Pod with Stack Guages.
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07-18-2018, 03:07 PM	#15
Xchange43 Private First Class 61 Rep 132 Posts Drives: 2018 F87 BMW M2 LCI Join Date: Jul 2013 Location: Montreal iTrader: (0)	What is the comparable sound with a Catless Wagner DP with the Dinan RD? __________________ 2011 BMW X1 28 (sold) 2013 BMW 328 Sportline (sold) 2018 BMW M2 LCI (current)
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07-18-2018, 11:33 PM	#17
ipeefreely Private First Class 137 Rep 146 Posts Drives: 2023 BMW XM, 2024 M2, 2022 GT3 Join Date: Jun 2018 Location: Norcal iTrader: (0)	I just recently installed the Remus exhaust in my car and it's about 20-30% louder than stock. Definitely has a deeper growl and cackles a bit now. I'm happy with it for now but might go with a catted dp down the line.
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07-19-2018, 11:16 AM	#22
Fabspeed Motorsport 1006 Rep 1,653 Posts Drives: BMW M235i Join Date: May 2015 Location: Fort Washington, PA iTrader: (0)	No cat bypass will pass emissions. There are ways to trick the emissions testing in some states but that is a different story. If you are worried about emissions the Fabspeed 200 cell Catted downpipe is the way to go. You will not have a problem passing emissions in in 49 out of the 50 states (sorry Ca) and I have not heard of anyone having an issue around the world.
	Appreciate 0 Quote