TXSZ66AVLANCHE

iTrader: (7)

Im too old, flowmaster came off last weekend and donated to a local member.

11Silvy

I have ARH lt's with highflow cats and a 22" magnaflow..sounds perfect imo. Not too loud at idle or cruising, but when you get it on a little it barks and at WOT, it's loud as ****.

Avalanche2002

I must be too old also. I took the 3" in/out, 24" case Hooker Max Flow off last weekend and went back to the stock cat-back. I may go with an e-cutout later.

The Hooker resonated pretty badly from 1400-2000 rpm; it was worst at 1800, which is 62 mph and right where my daily commute speed is. At 72 mph it quieted completely. I even added a 15" glass pack in front to try to quiet it down; it helped a little but not nearly enough.

Nflddog1000

I'm running Lts, high flow cats, x-pipe magnaflow muffler dumped in front of rear wheel, little cheaper one muffler does it all sounds sick

marksboy7

iTrader: (5)

Ok guys I'm looking to quiet mine down some and if that makes me old so be it lol. I've got whats in my sig right now and I like the sound but I'm just looking for something quieter in the cab. I thought about maybe running some bullets in front or after the aerochamber's if that'd help. I'm not ruling out just buying new mufflers either. What are everyone's thoughts?

TXSZ66AVLANCHE

iTrader: (7)

I installed a 3" in/out Thrush Super Turbo with a Magnaflow 3" replacement tail pile, $78 for the muffler and pipe, $25 for stainless band clamps. Rumble when engine is cold, quiets down when warmed up. During commuting (70-75mph) you can just barely hear it.

The same muffler with a 3" turn down dumped under the truck is pretty obnoxious lol since the tailpipe is clamped on I can switch it out in 10 min for weekend cruising.

BrutalSierra

iTrader: (1)

Add some nice high flow cats! You might lose 3hp but i like the sound of a good exhaust system with high flow cats! Sounds deeper and more "manly" to me.