is anyone using a 40 series flowmaster muffler on there car im planning on using it on my firebird formula with a 305tbi so it shouldnt be to loud.But up there.

 

Uhhh... I know that they say the 80's are louder, but I've yet to see that in practice. I have 40's on mine, and they are pretty close to the loudest exhaust on a non-"race" car that I've ever heard. In fact, I'm getting rid of them because they are not to my taste anymore. They do have a nice tone, though.

 

what type of set up are they in im looking for something that has the 40 series in them for cheap

 

I am a big fan of FLOWMASTER. In my opion the 40 series sounds great. Thing is that there are two types of 40 series. The 2-chamber and the 3-chamber. If you walk into muffler master or any place like that and ask for FLOWMASTERS. They'll probably put a 40-series 3-chamber on your car. The best sound will come from the 2-chamber. The best idea would be to ask them for the 2-chamber or order it from SUMMIT or JEGS. I guarantee if you get a 3-chamber you will be disappointed with it. Stay away from DELTA FLOW and FORCE2.
P.S. To get the full FLOWMASTER affect you cant have catalytic convs. And I haven't really made a choice on the 80 series.
www.flowmastermufflers.com might be some help.

 

Just installed a 40's on my car today it is a Deltaflow race muffler one of the 2-chambers sounds great even tho i have a cat and it's louder than my 80 at wot but quiter at idel(500rpm).

 

What about normal driving, which one is louder?

 

depends on rpm's anything under like 2K it's pretty tame i think. but at 2K-2500 there is a noticable interior resonance everyone claims.

 

For the 80 or 40?

 

the 40, i will try to make a sound clip if i can figure out how to, or what i need to. what do yo use to make sound clips?

 

I hear a nice distinct tone at around 2000-2500 rpm with my 80 series muffler

 

I had the 40 on my car w/o tips then put on an 80 with tips and removed the cat. It's tons louder now at all rpms. Headers are next.......

 

here is video/sound clip of my car...

http://www.members.***.net/-nuclear-/going.mpg

i accedently hit nutral lol