Anyone running one? I'm looking at P/N 12599 specifically. What do you guys think about the "X" being built into the muffler instead of being in the piping ahead of it? Anyone have experience with these types of mufflers?

 

I had one on my 4.8... Honestly it sounded like crap, then i put it on a buddies 5.3 and it sounded like crap, he then sold it and got something else...

 

What was the rest of the setup? Manifolds/headers, cats/no cats, and what did you not like about it?

 

You mean this one?








Stainless Works long tubes
3" true duals
---The muffler you're talking about---
Magnaflow ultra high flow CATs

Here is a few sound clips...

Launch

Drive by

In Cab

Not to loud and not to tame, sounds good when you wromp it.

 

I dont have the 3" but have the 2.5" version with OBX LT no cats and I think it is what i was looking for... Tame at idle almost stock but when you stomp it ppl know where your at!

 

to me I didn't notice much if any performance over my old flowmaster and the flowmaster sounded better imo. The magnatlow sounded really tinny Im getting used to it now, but I think I will end up changi g things a bit when I get a few extra bucks

 

The same muffler was on a stock truck with manifolds and cats, then it was on a truck with headers and no cats.... IMO it sounded like a import but alot deeper... There was not definition to the exhaust note...

 

Unless you have the muffler pretty close to the collector pipes like a normal x-pipe, the crossover built in isn't gonna do much at all cause the exhaust gases have cooled down enough to where their velocities aren't like upstream at all. X-pipes on our trucks are ideally supposed to be installed as close as possible to where the two pipes come side by side.

 

Ok, that's the other part of the equation that I was wondering about...cool if it sounds good, but is the performance there? I guess that answers that question. I think I'd be better off running two of their round mufflers and get an X to put further upstream.

Thanks for the pics Whippled496, looks very nice

 

That's my future set up, I already have the magnaflow x-pipe and 2 14" long 4" round magnaflow mufflers sittin on the back burner