So far the SLP LM's are the only ones that make the 3V motor sound like more than a 4.6 liter. The Flows may as well be stock without an X-pipe, and boomtubes sound like you are in a public bathroom. All this stuff is relative to what you want the car to sound like, I like the old school sound so SLP for me. The new muscle sound is nice too though, that smooth rumble that screams at wot is good if you need a refined sound.

 

check out my exhaust thread in my link.

 

hmmm...I have heard that the Boomtubes are just a more tuned, better soundingSLP...

 

Buy headers

Every aftermarket muffler I hear has an underwater gurgly sputter when you rev the engine. I personally hate it and the stock mufflers are fine for me. You get zero HP gain with mufflers anyway.

 

Way way better. SLP's are not old school...they're too raspy if ya ask me.An X-pipe
makes it even worse.

 

Simple save and get the prochamber avoid the x-pipe. I have an x-pipe and I hate it, cant stand the freakin thing.

I had flows, IMCO Cherry Bomb, h-pipe and OR H-pipe..I've been very happy with Boomtubes.

 

Flowmasters =[:'(]

 

+1

 

Stock Mufflers with O/R-H
Louder than flows, great sound. Cheaper too!
Just get some stainless polished tips welded on.

 

+2