Quote:
Originally Posted by Iam Broke
I had the MBRP T304 with the X-pipe. Drone was bad under 2k rpm with headers & catless. (See sig mods) Very loud for me.
Replaced the X pipe with the L99 resonated H chamber and it is much better now. Also went full 3" by replacing the neck down point with Vibrant 3"x 9" race mufflers. (looks kinda like HFC's but straight through)
If you don't want it LOUD, buy the L99 system. If it's too quiet, I can sell you the X pipe. That is the only difference in the two catback systems per MBRP.
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So you are saying that if I buy the L99 exhaust there wont be any drone? How does it compare to the LS3 in terms of sound? Also am I giving up any horsepower with the bottle neck where the 2 1/2" outlet on the cat meets the 2 1/2" outlet on the exhaust. I still want to keep cats I guess I can get the 3" X 3" cats from ARH but what do I do at the MBRP end. Do they make a 3" section or do I have to fab something up at a muffler shop?