I just installed a Dynomax 19387 cat back on my 2008. It is a 3" single system with a 4" polished tip. There is little to no info on this system so I figured I would post my opinion. I was looking for a mild sounding exhaust that would not produce the annoying drone that so many systems do. This system comes with a 24" body Ultra Flo welded muffler SI/SO. It is the perforated tube with the continuous fiberglass wrap. It is a straight thru design. I found a performance review http://www.offroadadventures.com/articles/view/id/288 that claims 18.1 RWHP and 27.8 Lbs/Ft RWTQ over stock. Sound impressions: Nice subtle idle, what a V-8 should sound like stock. There is very little to no resonance around 2,000 rpm when under load like going up a hill. You can barely hear the exhaust at cruise. From 0-60 it gives off a nice deep aggressive tone, but not overly loud. Overall for anyone wanting a mild-moderate sounding exhaust this one should be considered. I paid $302 total for the system and Dynomax was offering a $75 mail in rebate thru the end of August. I purchased band clamps in place of the regular supplied exhaust clamps as you can see in the picture. With the rebate and band clamps factored in I have $250 in this system. I absolutely love the sound, again it is pretty mild compared to most anything I can find on youtube, but people will notice it is not a stock exhaust. I will try to update this post in a few days with some videos if I can manage to figure out how to download my camcorder to youtube.
PROS:
Price, just right sound (for me)
CONS:
Aluminized only N/A stainless

 

Looks good. Do you have any videos? I had a Dynomax setup on my old truck and loved it.

 

Looks Great!
I have had Flowmaster dual exhaust on mine for 5 years now and I have grown to hate it!

Turned out louder than I really expected and the incab drone is terrible. There was no turning back because I cut my oem exhaust up removing it.

I may just have to look this one up.

Thanks for the pics and review.

 

I had a flowmaster cat back on my 01' Mountaineer. It was the 50 series SUV and the drone was terrible and it was overall too loud for my taste. Here is a link for a short in the cab ride with the windows up followed by a brief idle/rev. I will upload some drive by/ acceleration from outside of the truck in a few days. Sorry if I make anyone motion sick.....lolhttp://www.youtube.com/watch?v=FnFJrmfJ080

 

You know that 18hp/27 tq gain is the biggest crock of **** ever, right? You wont gain anything but sound with exhaust.

 

^ agreed

 

Yeah, I definately didn't buy an exhaust for performance gains. Like I said I just wanted something to make it sound a little more aggressive. I was very skeptical when I found that article, but those "gains" had nothing to with my decision to go with the dynomax. It was 100% trying to find the sound I would be happy with.

 

OP - can i ask what band clamps you used? Where did you get them?

Thanks

 

Weld, don't clamp.

 

In that case i may just go with replacing the stock muffler only. It don't make sense to me to buy the kit then have to take it to a shop for them to install it and weld it - kind of defeats the purpose.

Thanks for your reply.

 

Alot shops are actually cheaper to have a catback custom made than the kits. For my dynomax bullet single in dual out, all I brought in was the bullet and they did all the piping, welding, labor, y pipe all that stuff for only $225 exactly how I wanted it. Most si/do kits are $300+

 

I just installed this exact kit (Dynomax 19387) on my 04 5.4 and love it. Sounds great. It is not loud but it is very deep. I also think this is what the factory exhaust should sound like.

 

looking to do the same thing this weekend on my 08 Mark LT, just curious what you cut the pipe with? Just a hack saw?

 

^ Sawsall would be a lot better.

 

Aha!

Thanks.