Well I got a better soundclip of what glass packs sound like on a LSX (LQ9 XER281HR cam). The packs are at the end of the pipe, which may be attributing to the "muffled" kind of sound, none the less, here it is!

I'd also love others to throw in sound clips of their swaps if available, I am looking into buying Thrush welded mufflers (flowmaster 40 series copy). I just don't like this sound much, at idle it makes the motor almost seems to just be a crap 350 with a missfire.

http://www.youtube.com/watch?v=ZQhVRIyZtHM

 

New video of my new exhaust:
http://www.youtube.com/watch?v=hyRWfFqCQaE

Thrush welded 2 chamber mufflers (flowmaster 40 series knock off). IMO these sound MUCH better than anything else i've heard on an LSX, they are also only 29-39 bucks at most places!

 

I've found that if you put cherry bomb mufflers closer to the front of the car, the better it sounds. Just my .02

 

Sounds like my LT1 does, doesn't sound like an LSx series motor at all.

I have a Flowmaster on my '98 and it sounds totally different.

If you were going for less expensive, I guess, but the GMMG is still the best sounding exhaust for the f-bodies.

 

Man, that thing doesnt cam very hard, what LSA does it have?

 

It's a XER281HR 113+3 idling at 1,000rpm in park

 

I hate the Cherry Bombs. Personally I prefer the sound of the Borla and Flowmaster exhaust systems the best.

 

That's definitely different from what you typically hear in an LS1. It doesn't sound like a Gen III at all, sounds like glass packs on an SBC.

I typically prefer something like Borla, GMMG, or the like on LS1's, although I am having my exhaust made this weekend and they are using a bullet style muffler. So we will see how that sounds.

 

the gmmg is the best sounding exhaust on a fourth gen engine imho.

 

They sound great on an LT1 (which would sound the same as a normal SBC), sound even better on an LSx

 

GMMG sounds a lot like SLP loudmouth which I thought about going with, but they are both too expensive for what they are. The thrush is also much quieter at idle.