Here are the two different cat back systems I am considering.

MBRP Performance Exhaust
Part # S5216409

Gibson Performance Exhaust - Trucks, SUV, Diesel, RV, and Marine. Performance Exhaust for the Enthusiast
Part # 619654

My truck is an '09 with the 6.8l v10. Before anyone tells me....I know it wont sound like a V8 nor do I want it to. I am simply looking for a little bit more sound, better flow for towing and highway driving. Does anyone have any experience with either of these kits? If so what were your results? I know MBRP made a 4" kit for the older model sd but this is a 3" kit.

MBRP: 3" pipe, 6"x24" muffler (straight through)
Gibson: 3" pipe, 8"x24" muffler (chambered)

Seems like the MBRP is similar to the Banks Monster Exhaust.

Any experience or thoughts would be appreciated.

Thanks, Doug

 

Both are great kits. I would go with a straight through over a chambered style.

 

Why would you spend all that $$. I just swapped the stock muffler with a Dynomax Super turbo. Here's what I did: Webshots Rides offers thousands of the best car wallpapers. You can use any free flow muffler you want. Dynomax 17792 has 3" internals.