Active exhaust??? - Dodge Challenger Forum: Challenger & SRT8 Forums
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post #1 of 11 (permalink) Old 04-18-2019, 06:18 AM Thread Starter
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Active exhaust???

Hello All,

Just traded in my 2010 SRT on a new R/T Scat Widebody.

Been reading about this "active exhaust".

Could someone please school me about this.

Is it a good thing (performance wise)?

If I get a cat back exhaust (looking at Borla) do I need a system that also has it?

Any and all info greatly appreciated.

Thanks for your time,

Varooom
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post #2 of 11 (permalink) Old 04-18-2019, 06:53 AM
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You will need either Borla's active exhaust set-up or their active exhaust simulators. Those systems both have 2.75" diameter pipe.

Borla for some reason calls MDS active exhaust.
https://www.challengertalk.com/forum...valves-669525/


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post #3 of 11 (permalink) Old 04-18-2019, 06:56 AM
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the '15+ on all 392 / 6.4 / Hellcat and '17+ 5.7s have the Active Exhaust system

The AES valves are present to keep decibel levels to street-legal limits.

when the engine is under higher load (more throttle / higher rpm) the valves will open up for more free breathing.
>in sport mode the AES opens up at a faster rate

>for SRT models, Track model opens AES full time

If you get any aftermarket system, you'll need to get one with provisions for the AES valves. You can't unplug them as it will set MIL & error codes (they are monitored devices since they're part of exhaust / emissions equipment)

You might want to wait until you have the new car and evaluate whether its worth the expenditure.

Many owners have found the sound and tone quality much better than the earlier years.

If your '10 SRT was an A5, it still would have had the "suitcase" muffler. The M6 versions had bottle resonators and much louder / deeper tone than the A5 suitcase setup was.

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post #4 of 11 (permalink) Old 04-18-2019, 10:51 AM
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I agree with Hal H, I'm in the group that thinks the sound is next to perfect! no mods necessary unless of course...you want obnoxious and everything that goes along with it
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post #5 of 11 (permalink) Old 04-18-2019, 11:03 AM
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FWIW, my '16 SP's exhaust got a little deeper/throatier by 5k miles.

I thought that it sounded just right when new, but by 5k miles, it was perfect to my ears.

No plans at all to modify or change anything on it. It's perfect.


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post #6 of 11 (permalink) Old 04-18-2019, 11:14 AM
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I'll always give the thumbs up to the Active Exhaust. Money saved on the exhaust is gonna go elsewhere.
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post #7 of 11 (permalink) Old 04-18-2019, 11:18 AM
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Quote:
Originally Posted by NMRT View Post
I'll always give the thumbs up to the Active Exhaust. Money saved on the exhaust is gonna go elsewhere.
Actually for well under the price of a new catback system you can unlock your PCM and purchase HP tuners and tweak the active exhaust to your liking. Assuming you don't mind voiding your warranty.
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post #8 of 11 (permalink) Old 04-18-2019, 11:29 AM
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Quote:
Originally Posted by ChallyTatum View Post
Actually for well under the price of a new catback system you can unlock your PCM and purchase HP tuners and tweak the active exhaust to your liking. Assuming you don't mind voiding your warranty.

Assume away old chap. Lol Been thinking about getting an HP deal for awhile.
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post #9 of 11 (permalink) Old 04-18-2019, 11:35 AM
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If you don’t have the active exhaust valves connected it’ll thro a CEL code till fixed
So if you get an exhaust it’ll need that AE system
If you don’t want to change the exhaust but keep them open all the time a tune or some M-FERs would work fine


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post #10 of 11 (permalink) Old 04-18-2019, 11:55 AM
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Quote:
Originally Posted by Rainycoffee View Post
If you don’t have the active exhaust valves connected it’ll thro a CEL code till fixed
So if you get an exhaust it’ll need that AE system
If you don’t want to change the exhaust but keep them open all the time a tune or some M-FERs would work fine


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Or you can get the Borla system with the AEV simulators.
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