Eric,

Hey we finally got the chambered mufflers on! The sound is exactly what I was looking for in tone. But, they are loud, I could have done the 2 1/4 and maybe helped out my neighbors some. Also the chamber hits the side pipe shield and when I came to a stop light, I could smell the smell of burning fiberglass for the inner shield. So tonight I will put spacers in and bend the shield out some to get a good air gap in between.

With my engine and cam, when I left the muffler shop today, I was asked at two different lights,"what kind of wild engine to you have in that thing?" I don't think that too many will want to challenge me do to the awesome sound that the engine and chambered exhaust have . I just hope the loud sounds don't wear over time on us.

Thank you, Randy C. Welch

I received the thundersticks today, the construction of these chambered mufflers are outstanding and heavy duty with exact inside diameter inlets and outlets, good job. I will be ordering more down the road for my 77 thunderbird with 460 cobra jet engine, thanks.

Ruth

From fordmuscle.com - Jan. 2008 Post:

I've got Powerstick chambered pipe mufflers on my Mustang and they are definately different. They sound wicked at idle and positively NASCAR nasty at WOT. Classic muscle car sound.

From moeshemiclub.com - Oct. 2007:

Here is a run-down on my 5(five) mufflers that i have had on my hemi the past 4(four) years.

#1 A Flowmaster dealer installed- single 3" in/duel 3" out . Loud, resonated way too much, that is reason I took it off. Leaving the shop that does my work, I knew that I had maybe went the wrong way! Lost some power on low end!

#2 Went with a Warlock, As soon as I drove it a couple days, I knew this was't going to work. Times at track proved me right, lost time. This muffler stayed on for a three week period.

#3 This muffler was a "Full Boar", 3" in/3'out, single pipe. Had nice sound, picked up in my track times again! After a year, it too resonated too much for me.

#4 Changed to a AT3030, picked up a little more in power! Learned on this one, when I turned down tip it wasn't as loud and it didn't resonate. Very nice sound.

#5 This muffler(maker calls it a "power stick") is same as used on '63 vetts and some muscle cars from that era. On vette it was the outside pipes along bottom rim of car. Nice, different , rumble sound. Sound not heard much on market today. Also picked up some more time on track!

I have ran a cutout on the last two mufflers. Still am thinking about putting the #1 back on with turndowns and see what it does! Loved to run with #1 bye high school, shift into first, and drive 20mph, setting off the school kids car alarms!! That was fun.

When I get headers on, I am going with dual "power sticks".

From April 2005 camaroz28.com:

hey, just posting to enlighten any of you who were thinking about replacing your loudmouth resonator with a chambered muffler. Well it turned out awesome. I got a 'medium powerstick' chambered muffler from http://www.classicchambered.com/classic/products.h tml

Heres the model # - 3026SB

It is a 3" muffler, with a 3 inch flowpath, so no bottleneck like with other mufflers. :thumb:

The sound is great. Still loud, but it got rid of the popping when i let off the gas, plus the highway drone is virtually gone.

The only downside is that the muffler is not stainless. Not a big deal.

I give this mod :thumb: :thumb:

From April 2005 camaroz28.com:

TTT - Anyone else do this? Thanks

I did this, I placed a 3" powerstick on the i-pipe. I purchased it from classicchambered.com. And I love it, can't wait till I put my longtubes then its on. It has a deep throaty sound to it and everyone loves it.

Best of both worlds - steel wheels & 3" Powerstick Chambered Exhaust
on Jack G's super nice 502/502HP "Sleeper" 1969 Camaro.

Had the muffler installed this morning on my 07 trailblazer ss and it sounds GREAT! I think it sounds fantastic. I have heard the Corsa, Borla and Magnaflow that cost anywhere from $800-$1,000 and this sounds so much better, more of a muscle car sound. I'll be doing headers later this year so i may see about running duals out the back and using another Cobrapack muffler.

Thanks L. Parker

11/12/07 - Superformance Cobra Application:
Dear Classic Chambered,

I finished one side pipe to compare to the factory sidepipe. Going from one side of the car to the other to compare noise, it sounds like two completely different motors. It sounds MEAN! I just wish I could have finished this project over the driving season to really wring it out. When you rev the motor and let off the gas, you can hear the exhaust gas still flowing past the louvers for another 1-2 seconds after the noise of the motor slows down. Its the damndest thing. It sounds like a tearing sound. I could actually imitate the sound by blowing compressed air down the cobra pack.

Damn does it sound mean.

Also, I will be ordering some 20" from you for my factory pipes. I want to keep that set original looking.

BTW, I posted my story on SCOF (Superformance Cobra Owners Forum) which is a private forum for Superformance owners. I'm getting drilled with questions about upgrades and what all I did. I actually blamed you for helping me along with answers. I hope you don't mind.

Ronnie

I recently purchased a 3"x 16" POWERSTICK for my 91 camaro, I was leery being as how I had never heard it in person and didn't know anyone who had....until I drove the car, you people make THE BEST DAMN MUFFLER I HAVE EVER HEARD!!!!!

It's amazing I have been through about 5 different pipe, cat muffler setups but none had the sound I wanted. Your's has a nice deep rumble at idle, idle through about 2500 it is very aggressive and deep, only thing I can compare it to is a late model Stang with full exhaust and Flowmasters. 2500+ the gates of hell open up and it puts the biggest smile on my face, extremely loud, powerful powerful yet crisp and clean......This setup is here to stay! I will get some sound clips and pics shortly so you can put em up, you should see and increase in sales to the 82-92 f-body guys as I have put nothing but great reviews on thirdgen.org under the exhaust and aftermarket dealer boards....you were awesome to deal with when ordering and the product is the best sounding I have ever used...I thank you folks you have one happy customer. Feel free to give this out to potential customers or put on your site. This is on a '91 camaro RS HEAVILY worked 305, edelbrock shorty headers with ypipe the TES system, 3" imco pipe all the way back with the muffler in stock location with a 3" turndown.....

I am truly amazed and recommend you to anyone looking for this kind of sound

Paul G. - Aurora, Colorado

Hey Eric,
The 2530's are great. I put them on my 2001 Chevy 2500 HD. All my friends love the sound, one liked it so much he wanted a pair for his WS-6 Trans-Am for Christmas. So thats what the second order was for. Hopefully if everything works out I'll send you a video of my truck that you can use.

Adam M.

Eric,
I ordered a pair of your Powersticks for my 69 Chevelle and e-mailed you as to how impressed I was! Well, I had my car at the Cruisin-by-the-Bay car show here in Sandusky and won the muffler rapping contest with it - the crowd loved them!
(p.s. the car won a plaque too. Great Day!)

Thanks again, Jim Bean

Hello Eric,
We put the mufflers on yesterday and Holly crap!!!, what a difference I gain a hundred 100hp & 100 Fpt easy. I used to have to use the clutch to get my tires to spin, Not no more, I just tap the gas, and the tires are a blazing even at 30 miles an hour, Just touch the gas and your going sideways. I still can't believe what it has done to my car even Gord said If he hadn't seen it with his own eyes he wouldn't believe it. Its like Nitrous. I ran them in both directions they sounded better in backwards, a nicer deeper sound, and they weren't much louder. We tested them inside the shop with a Db meter, It was a more controlled environment. Readings with stock mufflers were 98 Db @ 2000rpm 110Db @ 3000rpm 106Db @ 4000rpm. With the power stix in the right way readings were 103Db @ 2000rpm 108Db @3000rpm&am p;am p;nb sp; 111 @4000rpm with them in backwards they were they were 106Db @ 2000rpm 107Db @ 3000rpm 109Db @ 4000rpm. You have to remember we were inside a shop, When we moved it outside it was a lot quieter. Again thank you I only wish I would have changed the mufflers before I changed my engine It mostly likely had enough power.

Thank you Eric!
These mufflers sound wicked. I'll try to get a vid to you and on LS1Tech.

Christopher Sims

Eric ,
finally got my chambered mufflers on my 69 chevelle, They sound great! the guy at the shop said i looked like a kid with a new toy from the smile on my face! the flow masters cant touch this!!!!!

Thanks, Jim Bean

Just wanted to let you know I just put my Powerstick on and its totally unbelievable. Its such a nice piece, quality is excellent and the sound is way better than anticipated. I put a 3026 stick on my 02 z28 where the stock muffler was and ran a single pipe out the drivers side.

I never write to any company I buy from unless I am totally pissed off, this is so great I had to let you know. I would love to be a dealer of these things.

Thank You - Jon

Eric:

Wheels arrived today in good condition, thanks, will recommend you to my friends.

Ron P.- Beavercreek, OH

In an effort to save what little hearing I have left, I installed new mufflers and took the car for a test cruise today. What a difference! The car still sounds great, but now I can hear other stuff too. It's the best of both worlds, a larger flow path than the originals (2.5" vs. 1.875")and much better sound control. I used the 30" Cobrapacks w/ 2.5" cores from Classic Chambered Exhaust.

RT - Houston, TX

Eric,
I picked up the rims yesterday at the customīs. I really was surprised how mint they look. Perfect work and perfect boxed! No damage at all and not a slight sight of rust. Thanks so much!

Only to give you a small impression how it will look when finished I attached two pics showing a friendīs Firebird with standard steel rims and the correct dogdishes. Mine will look the same except that my carīs a hardtop coupe - not a convertible - and painted Mayfair Maize.
Thanks again and take care

Thomas - Munich, Germany

Hello!
I just wanted you to know I recently installed a pair of Power Sticks on my 1966 Ford F100. WOW! These have to be the best sounding mufflers I've ever heard. Once my buddies hear them, they'll be yanking off their Flowmasters right quick.

Thank you for delivering a product as promised! The only thing that disappointed me was that there was no Classic Chambered Exhaust or Power Stick sticker in the box!

Matt Bishop

Hi,
Installed the Powerstick I ordered. works great as a resonator! It is installed on a 96 Caravan 2.4 Dual OHC engine.
Eliminatd the van "box" resonance.

Thank You
Paul Thompson

Cobrapacks # 3020-C, SPF MK III, Fuel Injected 427:

I just got back into my office today and I am trying to catch up, the cobra packs as well as the header changes really opened up the car. The performance change is amazing. They are louder than the original glass packs that I had from SPF but it is like music to my ears. I took Steve for a ride in the car when we had everything done and he thought the car was outstanding. When I accelerated in the car while traveling down the road it was very easy to break the rear end loose whereas before it took some work. The difference was so substantial others that have Steve at RED build their cars want to duplicate what was done to mine. I will start a thread as soon as I have time. Thanks for a great product.

George T. – Nevada