Doug Thorley Cat-back question. - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Cooper2010 · 04-20-2010, 05:52 PM

Anyone have any idea which mufflers they used for this system? If you do know, are they available through any vendor on this site?

I've already bought a magnaflow tru-x pipe, but love the DT Catback sound. Wouldnt really be interested unless the price was around $400 or less.

Thanks!

Edrock · 04-21-2010, 08:22 AM

They make their own mufflers but I'm pretty sure they are dual chambered (If memory serves me correctly from a phone conversation I had with Frank at DT). Send Frank a PM at Doug Thorley Headers and he'll be able to confirm. Also, Bad Karma has a lot of information about their Cat-back system too. He may even sell their products but not sure. Good luck.

Ivan @ Southwest Speed · 04-22-2010, 12:38 AM

Quote:

Originally Posted by Edrock

They make their own mufflers but I'm pretty sure they are dual chambered (If memory serves me correctly from a phone conversation I had with Frank at DT). Send Frank a PM at Doug Thorley Headers and he'll be able to confirm. Also, Bad Karma has a lot of information about their Cat-back system too. He may even sell their products but not sure. Good luck.

Thanks for the plug!

I'm an authorized dealer and will not be beat on any Doug Thorley price.

Getting to the meat and potatoes....The Doug Thorley Catback system uses their own proprietary Mufflers in the kit. They are called "Aero Flow" and while they are not neccessarily a "Thru" design, they are chambered for a specific frequency to produce the best power and sound. That's the easiest way to describe it.

Also, there are no visible clamps in the system and no welding is neccessary so installation can be done in your own driveway in just about an hour using handtools for a totally professional look!

Please let me know if there are anymore questions that I can help you in your quest for more.

Still awaiting the whole "GM Licensing" ordeal that Camaro5.com is going through and then we'll be able to get more verbal and public with pricing and all that.

But I can still offer you great service and the best prices if you PM me.

Thanks again and best of luck to you,
Ivan

Flysolow · 04-24-2010, 11:34 PM

I just removed a DT Cat back system from my L99 Camaro and reinstalled the stock system for now. I could not deal with the drone when in 4 cyl mode (AFM). I would like to sell the entire system. I really liked the sound of the DT mufflers, especially at WOT. I will probably go to an axle back system as soon as I sell the DT system. I would like to get $475.00 for the DT system.

Ivan @ Southwest Speed · 04-24-2010, 11:58 PM

Quote:

Originally Posted by Flysolow

I just removed a DT Cat back system from my L99 Camaro and reinstalled the stock system for now. I could not deal with the drone when in 4 cyl mode (AFM). I would like to sell the entire system. I really liked the sound of the DT mufflers, especially at WOT. I will probably go to an axle back system as soon as I sell the DT system. I would like to get $475.00 for the DT system.

Do you have a video of the drone? I've heard a couple people say it's too loud but not the drone yet.

Do you have headers on your car as well or just the Catback?

Thanks and best of luck with your sale sir....should sell fast at that price.

-Ivan

Mojave · 04-25-2010, 09:12 AM

Do you think on an LS3 it would not have the drone?

Ivan @ Southwest Speed · 04-25-2010, 10:03 AM

Quote:

Originally Posted by Mojave

Do you think on an LS3 it would not have the drone?

I haven't heard any untolerable nor annoying drone on either of the three (V6/LS3/L99) to be honest.

I really need to hear a video.

-Ivan

trudawg660 · 04-25-2010, 09:16 PM

i plan on tuning out AFM right after i put the catback on. from what i hear it isnt worth it anyway. u lost around 1mpg

Flysolow · 04-25-2010, 11:34 PM

I don't have a video. The drone was only when the AFM kicked in, otherwise I really liked the sound. Since the LS3 cars don't have AFM I think the DT exhaust would be great.

Ivan @ Southwest Speed · 04-26-2010, 12:15 AM

Quote:

Originally Posted by Flysolow

I don't have a video. The drone was only when the AFM kicked in, otherwise I really liked the sound. Since the LS3 cars don't have AFM I think the DT exhaust would be great.

Would you discribe the drone as low or high pitched when the AFM kicked on?

Man, sorry for your experience but I'd like to learn as much about it as I can.

Thanks for sharing and take care,
Ivan

04-20-2010, 05:52 PM	#1
Cooper2010 Drives: 2010 LS3 2SS CGM Join Date: Apr 2009 Location: Del Rio, TX Posts: 74	Doug Thorley Cat-back question. Anyone have any idea which mufflers they used for this system? If you do know, are they available through any vendor on this site? I've already bought a magnaflow tru-x pipe, but love the DT Catback sound. Wouldnt really be interested unless the price was around $400 or less. Thanks! __________________ CGM 2SS LS3

04-21-2010, 08:22 AM	#2
Edrock Drives: '10 Camaro 2SS LS3 Join Date: Jan 2009 Location: Jamestown, NC Posts: 964 View My Garage	They make their own mufflers but I'm pretty sure they are dual chambered (If memory serves me correctly from a phone conversation I had with Frank at DT). Send Frank a PM at Doug Thorley Headers and he'll be able to confirm. Also, Bad Karma has a lot of information about their Cat-back system too. He may even sell their products but not sure. Good luck. __________________ DT Shorties, Solo hi-flow Cats, X-pipe, resonator delete, Flowmaster Super-44s, VMAX TB, Stronger MAF, C.A.I. Intake with race scoop, and JRE Tune! WOT is my happy place!! Last edited by Edrock; 04-21-2010 at 08:37 AM.

04-25-2010, 09:12 AM	#6
Mojave San Diego Head Tuners Drives: 2016 Camaro 1SS ,NPP,MagRide, A8 Join Date: May 2009 Location: Temecula, CA Posts: 2,440 View My Garage	Do you think on an LS3 it would not have the drone? __________________ 2016 1SS A8, NPP, MagRide, Black Rims My 5th Camaro (3 Gen5, 1 Gen4) Member of San Diego Head Tuners https://www.youtube.com/c/MojaveKY https://www.instagram.com/mojaveky/ https://twitter.com/MojaveKY http://dinowax.refr.cc/bryanm 15% off DinoWax orders

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Headers & Cat Back Exhaust	SamSS	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	39	01-08-2010 11:26 PM
Doug Thorley Shorty Headers	1-SS	V8 Bolt-Ons & Tunes	4	10-18-2009 01:13 PM
? about Cat back vs Ax back vs Muffler	SS-screamer	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	4	10-01-2009 09:42 PM
cat back question	franknbeans	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	5	07-03-2009 10:10 AM
question on install: GMPP cat back exhaust	detroitboy	Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons	2	04-04-2009 01:52 PM

04-24-2010, 11:34 PM	#4
Flysolow Drives: 2010 Camaro SS Black/Black Join Date: Jan 2010 Location: Rancho Cucamonga, Ca Posts: 6	I just removed a DT Cat back system from my L99 Camaro and reinstalled the stock system for now. I could not deal with the drone when in 4 cyl mode (AFM). I would like to sell the entire system. I really liked the sound of the DT mufflers, especially at WOT. I will probably go to an axle back system as soon as I sell the DT system. I would like to get $475.00 for the DT system.

04-25-2010, 09:16 PM	#8
trudawg660 Drives: 2006 Dodge Charger / 2SS IOM Join Date: Dec 2008 Location: United Kingdom Posts: 1,640	i plan on tuning out AFM right after i put the catback on. from what i hear it isnt worth it anyway. u lost around 1mpg

04-25-2010, 11:34 PM	#9
Flysolow Drives: 2010 Camaro SS Black/Black Join Date: Jan 2010 Location: Rancho Cucamonga, Ca Posts: 6	I don't have a video. The drone was only when the AFM kicked in, otherwise I really liked the sound. Since the LS3 cars don't have AFM I think the DT exhaust would be great.