This is what I plan on getting so far:

Edelbrock Shorty headers
Hi-flow cats (not sure of which brand)
New y-pipe


I want to ditch my Magnaflow 14" SI/DO because it's too quiet. I've been searching this message board over and over, and my personal choices are Hooker Aerochambers or Spintech (sportsman or pro-street). I can't decide. I favor the aerochambers, but I've heard they're quiet unless you cut the cats off. Which one sounds more aggressive on a 5.3L? I want it to sound mean, without much interior resonance. I'll only be running one muffler, and I will be using cats. This is on a stock 5.3 with a pcm tune. Which one would you choose for this application?

Any help is greatly appreciated.

 

Anyone?

 

I put a spintech sportsman street on my truck when it was stock, and it had a mean sound to it(at high rpms) and a mellow rumble at idle. It wasn't too loud inside or out. I get a few compliments on my exhaust here and there.

 

Spintech clips

I have the "Super Stock- Race Quiet"

My buddy has the "Pro Shootouts" and they sound badass too!

 

Why dont you just buy long tube headers???

Probably be about the same price after everything is done, and you with get an extra 20 horse, and of course have your tune tweeked.

 

Pacesetters Lt
+ no cats
+ aerochamber
+ e-cutout
=

or if you want the cats or have to have them then do it, and if you dont have enough $ for a cutout then dont get one BUT DO get LT and a AEROCHAMBER!!!!

i got my LT + YPIPE + AERO + CUTOUT + labor to weld the muffler and the cutout for arouund 700. cant mem the EXACT amount. but i know it was under 700.

 

My truck is an x-cab Z-71. Is it possible to run LTs with cats on a 4WD?

 

Yes, if money isnt much of an issue, buy a set of Dynatech Supermaxx headers. Complete bolt in system, you can do it your self...but they are $1500.

Otherwise buy Pacesetters and have a custom y-pipe made.

 

i got the pacesetters y pipe

 

Travis your truck runs good and sounds awesome man. but i love the sound of the hooker mufflers on the ls1 cars!!!