i live in SoCal,
so i might get duals w/ cutouts after the X,
and run mufflers after the cutouts.

since i will go big cam,
i dont want to choke the car up when i have to be quiet
dont even mention dynomax bullets
cat converters will reduce noise better

any ideas?

 

Spintech low profiles.

 

Go with the SLP dual dual it sounds good and flows good! Most of the time people get rid of them pretty cheap because they have to have Borla or something else.

 

SLP Dual Dual vote,Love mine! As far as flow goes,I saw on here the other day where one of the better known memebers (can't remember who),dyno'd 525 w/cutout open & 510 w/cutout closed with a dual dual.
I beleieve there is a set-up in the for sale sect. now with a cutout for $275.
Just me .02 cents.
Tony

 

guys i dont think you can fit the dualdual in a X-pipe.

Run cats for sure if you want to knock out alot of sound. I like the borla xr1's

 

Obviously not,if you read his post he,asked for any ideas.

 

Any ideas regarding something (mufflers) to place right after the cut-outs, right after the X-pipe.
Bullets would be the usual choice but he specifically ruled them out.
The dual/dual, being a catback, is also ruled out (inferred).

 

I have an all 3 inch x with bullets/turndowns and its louder than hell. Dynomax ultraflo will flow good because they are straight through, but will be pretty loud. My plan is to cut out the bullets and weld dynomax super turbos in thier place. They may restrict flow slightly, but since there will be 2 of them to divide up the flow, I don't expect to lose much power. The super turbos are also relatively small. I think they are 4.5x9x14 so there should be enough room to tuck them in under the car right in fromt of the axle. I especially wouldn't worry too much about muffler flow for the track if you're running dual cutouts before the mufflers.

Jordan

 

i agree with jorday. if you have dual cutouts i would be more worried about a light but quiet muffler. once you bypass it the muffler will just become dead weight and not offer any gain/loss beyond the fact that its heavy.

 

DynoMax Super Turbos are the highest flowing "quite" mufflers out there.

 

I vote for the SLP dual-dual, the ones that came stock on the firehawks are quieter than the ones offered through SLP now...I'm running FLP headers through ORP's through the dual-dual, its a smooth loudness when WOT, nothing raspy...

 

I vote for Low profile spintech as well.

 

I'm planning for the same thing (minus the cut-outs), and I'm going to go with 2 18" bullets before the axle, and 2 pitbull or hooker or ultra-flow mufflers before normal exit.

Yes, Dynomax Super turbos are the quietest-high-flow muffler, but they still route air and are not straight through; according to their site you lose ~300 cfm, and after a few months the cheap fiberglass will wear out and they will increase in sound. Still, a great bang at $30.

Here is a chart I found at ls1.com a while back, FWIW:

<font class="small">Code:</font><hr /><pre> MUFFLER Muffler style DB @ IDLE DB @ 2000 RPMs DB @ WOT PEAK RWHP PEAK RW TORQUE
Bassani Real Street offset in / offset out 84 96 MAX. 373.7 333.8
Bassani Street offset in / offset out 83 96 120 372 333.5
Borla XR1 center / center 83 96 118 370 334
Borla XS offset in / offset out 80 90 110 373.2 332.6
DynoMax Ultra Flo offset in / offset out 83 94 113 369.4 333.2
Edelbrock RPM offset in / offset out 84 93 118 370.9 331.3
Flowmaster SUV style offset in/offset out 82 93 115 369.4 331.8
Flowtech Afterburner offset in / offset out 86 94 115 372.3 330.1
Flowtech Terminator offset in / offset out 86 94 119 369.5 331.3
Hooker Aerochamber offset in / offset out 87 94 114 372.1 330.4
Hooker MAXflow offset in / offset out 80 90 120 373.5 333
MAC offset in / offset out 87 98 119 372.3 331.5
MagnaFlow offset in / offset out 82 91 114 372.8 332.5
no muffler 91 103 MAX. 365.2 330.1
SpinTech offset in / offset out 87 97 116 371.6 332.2 </pre><hr />