Installed the Dynomax #39494 Axleback today (w/ video)

[Jason@JacFab]

So after much research, and watching video, after video, and listening to sound clip after sound clip I decided that the Dynomax 39494 axle back was the way to go for me. To my knowledge I'm the first "regular joe" to install, and upload a video, all I was able to find before was the video made by Dynomax...

The exhaust kit was on back order from Jeg's for 2 weeks, but finally showed up yesterday. I wasn't in a hurry as I was saving $13.50 by ordering from Jegs rather than Summit which supposedly had it in stock.

Tools required:

Hyd Jack (or lift, if you're living the dream), jackstands, sawsall (probably fastest, with the least amount of sparks), Impact gun, file, socket.

Total install time took 2 hours, although I probably spent 30-45 minutes to try and get them aligned with the rear fascia exhaust exit holes to my likings. I found the fit, was probably a little off from the factory, but I also ran out of time, so I got them as close as I could, and I will try for more another day. Being just a regular guy without a lift, it was a little tricky, I got the car up on stands, but there wasn't enough room to get the sawsall between the floor and the car to cut the OEM exhaust, so I had to jack one side of the car up past where the jack stand would reach, then lower back down and do the other side.

The only tip I have is that I found I got a little more room if I undid the factory rubber hangers towards the rear end before I cut the pipe; the instructions say to unhook after the cut.

Here is a pic of the rear of the car after the install:

You can see that the tips aren't exactly aligned with the exit holes, and that the mufflers on either side aren't sitting the same. I believe the stuff on the passenger side is "correct", it is centered, and sticks out a bit farther than the stuff on the drivers side... This weekend when I have time I will try to see if I can't get the drivers side to match the pass. side, because I think it looks better.

And now here's the video! It's not great quality, but I think you'll get the idea.



or click here

So how do I like it? It's ok. It's got the sound I'm looking for, but it needs to be slightly louder. I think the next step is to get rid of the resonators. If that doesn't do it, I guess its onto the cats

[MadMav]

Sounds good.

I had dynomax on my stroked Impala SS and loved it.

Mav

[sspaul]

sounds good, maybe an xpipe and cut the resonators out should help you get louder

[carls241]

Jason,
Just ordered mine today from Advanced Auto Parts. Price is $320.00 shipped with a $50.00 coupn available to anyone on-line. Plus, Dynomax has a $75 deibit card / rebate for purchases Now through 10/2011.

Net Purchase = $245.00...Figured I can't go wrong at that price....

I am looking for a nice Growl that doesn't give too much cabin noise. How would you say they rank on those expectations?

Thanks

[BigRed585Lbs]

Like it, like it, like it!

[blk5genss]

If you want it to be louder then get rid of the cats and add headers if you can! They aren't that hard to install at all!!

High Rev/Idle with and without Cam

[blk5genss]

I like the deep throaty sound though!! If you remove the cats it will sound even better!!

[Babylamb]

Do you still have this on your car?

[Jason@JacFab]

Originally Posted by Babylamb

Do you still have this on your car?

If you're asking me, yes I do still have this axle back in my car.

[PAUL SS]

I put those on last summer, but now I have headers and high flow cats and can't wait to hear how the sound will change. They were pretty mild before.


Update on sound.

I liked these mufflers when I put them on but they were not very loud. Yesterday I fired her up for the first time with the headers and hi flo cats, it went from rock 'n roll to heavy metal. What a difference!

[hollywood21639]

I have the Complete Dynomax cat-back exhaust. Paid $600 and I love it. It got louder after about 5000 miles.

[GuitarJozz]

That Dynomax cat-back sounds so good, hollywood! Where did you get it from?

I am thinking about trading up to an SS soon, and I'm already looking at mods...lol.

[jman17]

Originally Posted by blk5genss

I like the deep throaty sound though!! If you remove the cats it will sound even better!!

Whose headers did you go with?

[Birm]

I loved my Dynomax VT! Granted mine was paired with a Cam/headers but it sounded absolutely beast, and the best part was the ZERO Drone...