AMS Catted DP

///M3THOD · 12-10-2014, 03:44 PM

I'm looking to add some downpipes in my car and I think going with catless DP's is going to be too loud with my Meisterschaft GTC.

Anyone running this setup, AMS catted & GTC? How much more volume am I going to get with the catted versions of the DP's?

I am debating switching over to catless DP's and an Akropovic exhaust.

Also, whats the power increase with the catted versions as opposed to the non?

And finally, has the rattle situation been resolved with the inclusion of new gaskets with the new sets of DP's? I had rattling wastegates in my 335 years ago and while this is unrelated to the wastegates, I would prefer to avoid trying to resolve new low rpm, decel rattle as a result of swapping DP's.

Any insights appreciated!

bm5bullit · 12-11-2014, 09:45 AM

I have never had anything but great satisfaction from adding AMS catted DP's to my M5. Power is very much noticeable, from throttle tip-in on up, and makes great noises. I wire open the exhaust valves and it sounds even better.

mcvaughan · 12-11-2014, 10:30 AM

I bought catless AMS to pair with my Akra. The YouTube video between the catted vs. catless sold me. Plus, you get a little more power out of the catless.

JPMD · 12-11-2014, 11:52 AM

Quote:

Originally Posted by bm5bullit

I have never had anything but great satisfaction from adding AMS catted DP's to my M5. Power is very much noticeable, from throttle tip-in on up, and makes great noises. I wire open the exhaust valves and it sounds even better.

Any CEL with the catted AMS pipes. I heard after a certain number of miles most get it.

Need4Speed_Motorsports · 12-11-2014, 11:57 AM

Catless DPs with a Meisterschaft rear section will be LOUD. We have done that setup on a customers car locally and the sound was

but definitely loud. I wish I had some videos for you.

jnkirk1974 · 12-12-2014, 10:35 AM

Quote:

Originally Posted by Need4Speed_Motorsports

Catless DPs with a Meisterschaft rear section will be LOUD. We have done that setup on a customers car locally and the sound was

but definitely loud. I wish I had some videos for you.

I'm thinking about getting the RPI GTM on my M6, with catted DPS.

fyim · 12-12-2014, 04:40 PM

Sound should be like this

6spdterror · 12-15-2014, 04:01 AM

Im also on the fence about catted vs catless. Does anyone know the HP gain difference? The cehck engine light issue with the catless sounds like its annoying!

greentrbo95gst · 12-15-2014, 11:01 AM

Quote:

Originally Posted by 6spdterror

Im also on the fence about catted vs catless. Does anyone know the HP gain difference? The cehck engine light issue with the catless sounds like its annoying!

10-15hp at the most. I raced a f10 m5 from a roll with same exact mods except he was catted and my car is catless and I got a initial tq jump, but he stayed with me.

Mbmw5 · 12-15-2014, 06:43 PM

Quote:

Originally Posted by greentrbo95gst

Quote:

Originally Posted by 6spdterror

Im also on the fence about catted vs catless. Does anyone know the HP gain difference? The cehck engine light issue with the catless sounds like its annoying!

10-15hp at the most. I raced a f10 m5 from a roll with same exact mods except he was catted and my car is catless and I got a initial tq jump, but he stayed with me.

The HP gain is 50hp going from stock to 300 cell AMS catted downpipes. I had a Dyno done before and after.

reychen123 · 12-15-2014, 07:48 PM

I have meisterschaft rear section and catless dp, still want it louder, just don't hear much in the cabin except the sexy fart.

e46SilverM3 · 12-15-2014, 08:51 PM

Quote:

Originally Posted by reychen123

I have meisterschaft rear section and catless dp, still want it louder, just don't hear much in the cabin except the sexy fart.

I want to get the same setup. Does the catless setup throw off any lights?

Quicksilver72 · 12-16-2014, 11:06 AM

Quote:

Originally Posted by BlackM5

I want to get the same setup. Does the catless setup throw off any lights?

How do you plan to pass the annual New York State emission testing if you delete the cats? I would have to believe it would be a huge PITA.

reychen123 · 12-16-2014, 07:22 PM

Quote:

Originally Posted by BlackM5

I want to get the same setup. Does the catless setup throw off any lights?

it does, you would ignore it since the amazing sound you can hear, the most worthy mod ive done.

greentrbo95gst · 12-16-2014, 08:32 PM

Quote:

Originally Posted by reychen123

I have meisterschaft rear section and catless dp, still want it louder, just don't hear much in the cabin except the sexy fart.

Get the center velocity section. I have it and it's awesome. Pm me for info.

bronch · 12-16-2014, 08:58 PM

Quote:

Originally Posted by greentrbo95gst

Get the center velocity section. I have it and it's awesome. Pm me for info.

Do you have a vid of the sound? Also, do you drive your car every day or just drive 1/4 mi at a time?

I'm torn. I'm buying the car for certain reasons, but am reluctantly giving up my coupe. I'd still like to have the sound of a German muscle car, but be able to to drive to church... So to speak.

greentrbo95gst · 12-16-2014, 09:08 PM

Quote:

Originally Posted by bronch

Do you have a vid of the sound? Also, do you drive your car every day or just drive 1/4 mi at a time?

I'm torn. I'm buying the car for certain reasons, but am reluctantly giving up my coupe. I'd still like to have the sound of a German muscle car, but be able to to drive to church... So to speak.

I don't have a video, but I drive the car pretty often. I have another car for commuting, but I end up driving the m5 because it's so addicting. I have the valve control and if I need it to be quiet I close the valves with a wireless remote.
As long as you stay out of the 1500-1800 rpm you should be drone free.

bronch · 12-16-2014, 09:24 PM

Quote:

Originally Posted by greentrbo95gst

...I have the valve control and if I need it to be quiet I close the valves with a wireless remote...

Exhaustmeister? Such a tough decision since we're so limited by youtube videos and comparing the sound frankly sucks on on all the different exhausts. I think I like the RPi GTM, but just not sure about going with DP's yet.

greentrbo95gst · 12-17-2014, 08:44 AM

Here is a little clip someone recorded at Bimmerfest
F10 M5 Meisterschaft GTC exhaust with LXR pipe.:

I have ams catless downpipes with meisterschaft gtc exhaust (valve controlled) and lxr mid pipe.

///M3THOD · 12-18-2014, 03:17 PM

I have the LXR mid pipe and GTC now. No way I am going with catless while running the Meisterschaft.

I was thinking the sound would be marginally louder with catted AMS DP's.

There's still a cat, its just freer flowing and probably lets through more volume.

Jay1994 · 12-18-2014, 03:59 PM

Quote:

Originally Posted by ///M3THOD

I have the LXR mid pipe and GTC now. No way I am going with catless while running the Meisterschaft.

I was thinking the sound would be marginally louder with catted AMS DP's.

There's still a cat, its just freer flowing and probably lets through more volume.

Catless DPs will be a huge increase in sound. You hear the turbos spool up a lot more too with them.

PetrolFumes · 12-19-2014, 05:35 PM

Anyone running catted DPs amd esienmann race rear? Vids? Input?

12-10-2014, 03:44 PM	#1
///M3THOD Lieutenant Colonel 117 Rep 1,625 Posts Drives: 991.2 GTS Join Date: Dec 2009 Location: ATL iTrader: (30)	AMS Catted DP - Questions I'm looking to add some downpipes in my car and I think going with catless DP's is going to be too loud with my Meisterschaft GTC. Anyone running this setup, AMS catted & GTC? How much more volume am I going to get with the catted versions of the DP's? I am debating switching over to catless DP's and an Akropovic exhaust. Also, whats the power increase with the catted versions as opposed to the non? And finally, has the rattle situation been resolved with the inclusion of new gaskets with the new sets of DP's? I had rattling wastegates in my 335 years ago and while this is unrelated to the wastegates, I would prefer to avoid trying to resolve new low rpm, decel rattle as a result of swapping DP's. Any insights appreciated! __________________ 2014 Individual /// M5 Competition AW/AB \|\| Vorsteiner FF-103 \|\| BMS JB4 \|\| Meisterschaft GTC \|\| RPI \|\| IND \|\| Challenge \|\|
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12-11-2014, 09:45 AM	#2
bm5bullit Captain 239 Rep 978 Posts Drives: 2021 BMW M340i Join Date: Jun 2009 Location: Texas iTrader: (0)	Meows I have never had anything but great satisfaction from adding AMS catted DP's to my M5. Power is very much noticeable, from throttle tip-in on up, and makes great noises. I wire open the exhaust valves and it sounds even better. __________________ 2021 M340i 2020 X3 M40i - her car 2019 M5, AW, DP's, MSR CAI, BM3, SOLD 2020 Chev. ZR2 Bison truck, Daily Driver
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12-11-2014, 10:30 AM	#3
mcvaughan Lieutenant Colonel 704 Rep 1,917 Posts Drives: F87 Competition Join Date: Sep 2012 Location: Katy, TX iTrader: (1)	I bought catless AMS to pair with my Akra. The YouTube video between the catted vs. catless sold me. Plus, you get a little more power out of the catless. __________________ Matt
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12-11-2014, 11:57 AM	#5
Need4Speed_Motorsports 1027 Rep 24,709 Posts Drives: BMW E39 M5, F10 M5, F80 M3 Join Date: Jun 2012 Location: Los Angeles, California iTrader: (3)	Catless DPs with a Meisterschaft rear section will be LOUD. We have done that setup on a customers car locally and the sound was but definitely loud. I wish I had some videos for you.
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12-12-2014, 04:40 PM	#7
fyim First Lieutenant 83 Rep 377 Posts Drives: E92 Join Date: Jul 2009 Location: East iTrader: (0)	Sound should be like this
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12-15-2014, 04:01 AM	#8
6spdterror Route Runner 137 Rep 661 Posts Drives: 16 ///M6 Gran Coupe Join Date: Jan 2010 Location: NYC iTrader: (0)	Im also on the fence about catted vs catless. Does anyone know the HP gain difference? The cehck engine light issue with the catless sounds like its annoying! __________________ 16 SMB M6 Gran Coupe 16 BS X6 X-line (wife's truck) 13 AW M5 (sold) 04 Honda Pilot (everyday car)
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12-15-2014, 07:48 PM	#11
reychen123 Private 12 Rep 75 Posts Drives: m5 f10 Join Date: Dec 2012 Location: arizona iTrader: (0)	I have meisterschaft rear section and catless dp, still want it louder, just don't hear much in the cabin except the sexy fart.
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12-17-2014, 08:44 AM	#19
greentrbo95gst Brigadier General 1231 Rep 4,106 Posts Drives: 21 M5 Comp Join Date: Jan 2011 Location: Orange County iTrader: (6)	Here is a little clip someone recorded at Bimmerfest F10 M5 Meisterschaft GTC exhaust with LXR pipe.: I have ams catless downpipes with meisterschaft gtc exhaust (valve controlled) and lxr mid pipe.
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12-18-2014, 03:17 PM	#20
///M3THOD Lieutenant Colonel 117 Rep 1,625 Posts Drives: 991.2 GTS Join Date: Dec 2009 Location: ATL iTrader: (30)	I have the LXR mid pipe and GTC now. No way I am going with catless while running the Meisterschaft. I was thinking the sound would be marginally louder with catted AMS DP's. There's still a cat, its just freer flowing and probably lets through more volume. __________________ 2014 Individual /// M5 Competition AW/AB \|\| Vorsteiner FF-103 \|\| BMS JB4 \|\| Meisterschaft GTC \|\| RPI \|\| IND \|\| Challenge \|\|
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12-19-2014, 05:35 PM	#22
PetrolFumes Major 351 Rep 1,417 Posts Drives: Raptor, GT3RS,E92 M3,X5M50i Join Date: Apr 2012 Location: FL iTrader: (2)	Anyone running catted DPs amd esienmann race rear? Vids? Input?
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