To resonate or not to resonate
 

I'm in the process of fixing my exhaust and I'm trying to decide if I want to add a Dynomax Racing Bullet as a resonator, as suggested in other threads. I like the sound of the car right now but I could handle it being just a LITTLE quieter around town.

How much difference does this little muffler actually make? Does it change the tone at all or just reduce the volume a little?

Current exhaust is 2.5" from turbo to bumper with an ebay "high flow" cat and relatively small magnaflow muffler (I think it's 14" long).

Yes something like that would make a noticeable difference, but a longer, wider, more proper resonator would make a much bigger difference. The voume will go down and it will sound deeper.

I'm not looking for a big difference, does anybody know just what kind of difference the little bullet will make?

do it. use band clamps. if you dont like it, replace the section you cut out.

No band clamps, they suck butt and are the reason my exhaust is on my workbench instead of under my car. I'll get one and weld it in and if I don't like it then I will keep the pipe I removed for re-insertion.

band clamp are awesome. I used two to put my resonator on. I finally got around to welding it, and since i used a permatex muffler bandage under the clamp (http://www.permatex.com/products/Aut...pe_Bandage.htm) it pretty much welded the pipes together. We had to grind it all off. The rear one wasn't budging so we left it alone.


http://boostedmiata.com/exhaust/IMG_...8Medium%29.JPG

no resonators ftw

says the person running open downpipe and hating it right now....

Ok now I can't find that bullet on Summit. I found it like 2 days ago...

I remember the difference of resonator vs. none when I had the srt and the none-resonated 3" sounded way better. Granted it had more of a rough/raw sound too it...but in a good way.

I called summit and the guy said the racing bullet isn't stainless. With that news, unless anybody can suggest anything else for about the same price I'll probably just skip the resonator again and stick with what I've got.

dynomax bullet race muffler.

they are the bomb. not cherry.

i believe my exhaust with cat + bullet race muffler + 22" magnaflow stainless universal oval is pretty much perfect.

Brand: Dynomax Performance
Product Line: Dynomax Ultra Flo Welded Mufflers
Part Type: Mufflers
Part Number: WLK-24215
Case Shape: Round
Inlet Diameter (in): 2.500 in.
Inlet Quantity: Single
Inlet Location: Center
Outlet Diameter (in): 2.500 in.
Outlet Quantity: Single
Outlet Location: Center
Internal Construction: Perforated tube
Muffler Material: Stainless steel
Muffler Finish: Polished
Case Length (in): 12.000 in.
Case Outside Diameter (in): 4.000 in.
Overall Length (in): 16.500 in.
Outlet Style: Standard, without tip
Quantity: Sold individually.

Muffler, Race Bullet, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Aluminized, Each

Ok, so is it actually stainless or is it aluminized? The description says both, and aluminized won't last long up here in the winter. That and the rest of my exhaust is stainless.

you need this part number: 17240

Ultra Flow SS



Magnaflow Part# 10426 = $63.62 at performancepeddler.com, you can always low ball them, they usally go for it since they have best pricing from Magnaflow over any other vendor.

I can't boldify your post, but the last line says steel, aluminized. And the guy on the phone seemed to think it was aluminized. you own one though, right? I'll take your word for it.

no i don't. i just copied from summitracing's page. but when i look on dynomax.com, it's aluminumized. the only one that isn't is the ultra flow SS model.

which I'm sure costs twice as much. And I can't find it with that part number you posted.

yes, which is why i posted the magnaflow alternative....

resonate.

100% resonate! It will make topless driving possible while trying to carry on a conversation.

You will like the car with the throaty sound using the resonator and it won't get you tickets!

Cheers,
Prospero

Attachment 11160

MagnaFlow Performance Exhaust

4" body
stainless
2.5" in and out.


polished for pimpin.

basically same as brainy's post.

Pypes M-80 Round Case Mufflers - summitracing.com

Pypes muffler...

14"L x 4"OD case, Polished SS, resonated glasspack, 2.5"in/out w/ slip over fit (easily welded)... $45.

Stain finish is cheaper.

Well, I have changed exhausts more than my underwear over the past two years.
Running header to high-flow cat with non-resonated midpipe and roadster sport (it was ok sounding, but under load had that tinny rasp) Thank god the muffler finally blew out after only a year of use.
Fixed muffler with Borla unit, still non-res midpipe.....sounded better; but under load it would rasp out in higher rpms.
Finally said eff it!
Cut mid pipe - welded in 18" resonator - kept bolted flange from original setup and turned the Borla unit transverse to mimic a center dump.
Sounds awesome, growls at all RPMS. Have had some say it sounds similar to an STI. He He.
The best part is, the decibel level does not get louder as rpms rise. From 3K on up, it is the same loudness. Doesn't matter if you are hard on throttle or not either.