I'm currently running a flowmaster muffler, gutted cat, and pacesetter headers. My car sounds good, but i'd like it to be louder. I was wondering what's gonna be the loudest muffler i can get my hands on. I've heard that the dynomax ultra flow series and spin tech mufflers are the ones to beat. Any insight?

 

I'm happy with my Hooker Aero Chamber, getting 3" exhaust will make it louder. Course if you want really loud a single chamber flowmaster is really loud, but you might get in trouble with the sound police, they're illegal for street use. There's a sound clip of my exhaust in the sig.

 

The loudest?? Flowmaster 1 chamber.

 

glasspacks are pretty F'in loud too

 

can i get a single chamber flowmaster that has dual outlets?

 

Actually they don't, they should though.

 

so would i be able to run a single chamber muffler (one inlet, one outlet) and figure a way to still have my dual pipes running out the back, or would i have to run dual exhaust.

 

Who sells single chamber flowmasters? I always thought they were discontinued. I don't see them on summit/jegs.


EDIT: ahh ...now I see them listed "Delta Force Race Mufflers".

 

i was just emailed by a guy that works at an exhaust shop that said the single chamber mufflers sound like hell unless you have about 500 hp running through them. Anyone actually running them?

 

Loudest muffler=no muffler

 

The 1 chamber I heard had 520HP running through it so I don't know. (It was GR8!!) But I think a few here had them, use the search feature.

 

I dont see how the amount of hp coming through the muffler would effect the sound at all.

 

thats kind of what i thought. But i'm new to this, so i'm going off what i'm told. But the add in summit says the flowmaster single chambers are for bracket racers or circle track racers w/ 200-275 hp.

 

you could get the dynomax bullet muffler. its small and is loud. my brother has it on his 86 sport coupe with headman headers and y pipe and a dynomax cat. and u can hear that car coming from the next street over and as u get on it really hard its loud as hell.

 

I talked to the rep at flowmaster, he said for me to go with the single chamber if i don't mind one tail pipe instead of duals. As far as the dynomax bullet goes, i've been looking into them, but never heard one in person. Will it really blow my flowmaster out of the water?

 

run a single 3" 1 chamber before the axle, after it goes over the axle, have the 3" pipe split into two 2.5" pipes and exit in the stock location. That's basicly an SLP loudmouth style setup.

 

How would i split the pipe and have it run dual out the back?

 

The more horsepower the engine makes, the more exhaust it has to send throught the pipes and muffler. The more exhaust running through will make it louder.

 

jegs part number 389-Y250300A its says collector but it may work

 

think about it: same exhaust setup on two cars. one car has 500hp one has 150 hp which is gonna be louder...? more horespower = more air in = more sound out

 

Yup. Shoulda heard that car I heard though LOL. You can hear that thing coming from a WHILE away.

 

yes the dynomax bullet muffler will blow the flowfaster out of the water. becuz my brother had an 80 seriers flowmaster and took it off to do his full exuast from headers to tail pipe and yes it blew the flowmaster so far away. if u want loud the bullets good. and it looks like a a straight piece of pipe with a small amount of fiberglass around it in the inside to muffle the sound a hair. so basiclly u will be runnin a staright pipe really if u look at it.

 

You can't compare the 80 Series to that, the 1 chamber is a real comparison.

 

I like the idea of running either the bullet or the single chamber flow before the axle, but I'd like to do so and figure out a way to split my pipes so i have duals out the back. I know i can do it, but don't wanna be put in the poor house either. Anybody know if they make a "T" exhaust adapter?

 

I wonder how running the 2 pipes would be for flow??

 

I found a shop where I live that makes something like this:
[].............[] <- Tips
[].............[]
.\=======/
.......[]
/===/
[]
[] <- goes over axel.

It is basicaly a 'T' shape, only, where the = sign is, there are some sort of muffler there. They are a cross between glasspacks and something else. The whole thing is made out of stainless steel and costs around $80 I think.

Disregard the ... they are for spacing. Sorry about that. didn't want to take the time trying to figure out how to post a pic.

 

thanks, that was really helpful. i'm gonna do some asking around and see what i can come up with.

 

HI FROM LOUISIANA IM NOT REAL WELL WITH MY PC YET SO BARE WITH ME I HAVE RUN 5 XHAUST ON MY FIREBIRD 1ST WAS STOCK PIPE AND CAT WITH A OFFSET FLOW MASTER SOUND GOOD KIND OF QUIET FLOW OK 317 RWHP WENT TO A SINGLE IN DUAL OUT ON SAME SIDE LESS RESTRICTION LOUD GOOD SOUND 323 RWHP TOOK OFF CAT ONLY PU 2 HP THEN WENT TO A SINGLE RACE MAGNUM UNDER CAR WITH A TURN DOWN SOUND TO LOUD IN CAR 321 RWHP TOOK OFF TURN DOWN EXIT OUT BACK HOOKER TIP WITH RESONATOR SOUND BETTER NO HP CHANGE JUST QUIETER INSIDE NOW BELIEVE IT OR NOT THIS MADE THE BEST HP AND SOUND WENT WITH 2AND HALF OUT HEADERS TO A SINGLE 3 IN MANDREL OVER AXLE TO A SINGLE 3 IN SUPERTRAPP MUFFLER ONLY WITH DISCS OUT CAR SOUNDS AWSOME REVS MUCH BETTER , MADE 328 RWHP AND CAN QUIET IT IF YOU WANT TO TAKE THE FAMILY OR A DATE OUT IN IT

 

If you are still running a y-pipe, I have found that running no muffler at produces a very nice sound.

nick

 

I recently disassembled my exhaust system piece by piece, and started the car each time to see how it'd sound.

My regular flowmaster 40 series with dual cats had a nice low rumble. And when you stepped on it... it was still low and sorta quiet.

Running straight off the Y pipe produced a deeper rumble at idle.. but sounded like race car when you revved it. It turned into a high pitched "blat" sound... and flames shoot out when ya backfire.

Running straight off stock exhaust manifolds literally vibrated a picture off the wall in the house. Don't rev it, trust me.

I now have the Flowmaster 40 back on with gutted cats. It's more "rumbly" than it used to be, but it "echos" when you get on it. Produced a nice vibration in the car while idling at a light tho.

So if you want loudest without being over obnoxious... I'd say run a pipe straight off the Y to the back.

 

what i'm leaning towards doing is putting a single chamber flowmaster in before my axle or where my cat is, and then having a custom Y fabricated so i can still have my dual look.... still playing w/ the idea of a cutout though

 

Next week I'm going to try to get this done. I checked with a local muffler shop and they said they could do it, so we'll see. Y the pipe as it comes over the axle into two 2.5s, run one straight back with one 2.5 1-chamber flowmaster there and another one on the other pipe on the driver side, too.
..........I
..........I
...I-----I
...I......I
..O.....O
...I......I


I and --- = pipe
O= 1-chamber flowmaster

 

Don't know about flow, but that would be LOUD.

 

Let me know how much that ran you and how it sounds bro

 

I'll post here after I get it done, but unfortunately I only have a 305 with the 2.5" intermediate. Flowmasters aren't 'straight through' design so they probably don't flow as good as others, but after a future engine swap I'm not going for over 280 hp or so, so it shouldn't hurt, but I might need to go with a 3" intermediate pipe, too. I just like the flowmaster sound. I had a 3" one chamber on both my past chevy 350 trucks and a crossflow on my past '91 350 Z28 and was satisfied with all, but I do like the loudness of the one chambers. It has been several years since I bought a one chamber, and I could've swore those things were like $50 a piece, now they're about $70. Oh yea, I've never had trouble with inspection or cops on the one chambers, even though they're supposed to be illegal for street use. Everyone else has glasspacks on their trucks and they're twice as loud and annoying as those Flowmasters. Especially when they run tiny pipes and 3" echo tips.

 

Why not put a muffler on only 1 pipe?!