http://www.summitracing.com/parts/WLK-17553/

Gonna use this muffler for my custom exhaust build. Any reasons not to?

 

Any experience with this or the similar style Magnaflow?

 

In my opinion, the x-pipe in the muffler is little more than marketing hype. By the time the exhaust gases reach the muffler in a standard position on the truck, the gases have cooled enough that their velocity through the x-pipe is slow enough to not help "pull" the exhaust through the other bank via the cross-over.

Any cross-over pipe, be it an x-pipe or an h-pipe, needs to be as close to the collectors as possible to be of most benefit. The reasoning is because that is where the exhaust gases are of a higher temperature and don't move lazily like they do when it cools down.

So in short, I'd ditch the x-pipe in the muffler and get a true x-pipe and put it as far up in the exhaust as you can.

 

i ran the magnaflow X in my truck, idk if it actually has the same effect of a X midpipe. It sounded dam good on my old truck.

 

So from a performance standpoint, the "x" mufflers are pointless. Maybe a di/do magnaflow without the x or two single straight through style mufflers with an actual x pipe after the headers? my main concern being that I'm building my own exhaust and didn't buy an x pipe or anything. I guess that will be on my "to make" list. Catch my project in the projects section. Planning to start on Thursday.

 

If you're running duals, I'd highly recommend an x-pipe, or just any crossover pipe. It'll help the exhaust scavenging, especially in the lower rpm range.

 

Alright so an x pipe it is.

 

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