I'm looking to get a flowmaster catback system for my new to me as of two days ago L. In the past I have installed a 50 series muffler and found that the interior noise was a little too much. Any suggestions on what series will give me the deep loud rumble on the outside and a deep subtle pitch on the inside? Any suggestions would be great. I want the gurgle!!!

 

Stay away from the Flowmaster mufflers, they don't work well on our trucks.

Do some searching, Magnaflow, or Bassani is the way to go.

 

What do you mean by "don't work well"? Thanks for the input.

 

You will loose low end power.

 

Flowmaster Pros and Cons.... Click Here for links to good reading

 

go for the flows man... you might lose a lil bit of power but the sound is definitely worth it to me! I have a flowmaster 40 series orignal SI/DO...i think if you got for 2 50 series delta flows it would probably cut that interior noise down a little bit and do a lot more for the hp than my SI/DO. Dunno how loud a L 5.4 is compared to my lil' ol' 4.6 though

 

if u wanna get the flows and lose power, than maybe the L isn't the right truck for you......I've heard bassani and maganflow and to me I think magnaflow if a little deeper at idle, but when you step on the gas with a bassani exhaust on, people know it!

 

I think the L is the truck for me since I bought one...I'll check out the bassani and magnaflow, what's the ballpark $ on these systems? Thanks for the replies!

 

Simmy
If your not in a rush, I recomend the JDM dual Magnaflow with the X pipe