I'm looking to replace the turbo mufflers on my car,but not sure what to put on.Looking for a nice aggressive sound.How are the Dynomax ultra's
As to lets say Flowmaster 40's? Open to all suggestions Thanx

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summit turbos are cheap and sound really nice, have them on mine and love the sound

Normal Dynomax Super Turbos sound awesome, and are cheap. I have 40's on my car right now, came with car, I want to lose them and put some Super Turbos on.

Later
Steve

Steve,off topic here..nice picture there on your prestage.com website..I see a little air there! graemlins/thumbsup.gif :cool:

Thanx Chris.Yea,ya might be able to get a credit card or two under the tires graemlins/hurray.gif

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I'm partial to the dynomax ultraflo's. Are you running stock springs on the front of your 66? I know mine has pulled the left front a time or two,just havent caught it on tape/film yet,and you're running a half second slower. I know,it must be MY weight up front...lol

Summit turbos

Hey Bob,very nice ride graemlins/thumbsup.gif the springs are stock on the car,and pretty new.I'm also toying with the idea of putting on travel limiter on the motor,or switching to solid mounts.This should help me launch alittle straighter,along with the air bag.
Are those flows real loud? I won't get them if there not loud :D

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Flowmaster 40 series would be pretty obnoxious on your car IMHO Steve..obnoxious in a good way :D

..I can tell you got bit by the speed bug!

Hey Chris Loud is good....Right? graemlins/thumbsup.gif it's been about 25 years since my last run down the track with a car I've owned.When We spoke at Etown,that was the first time in 25 years for me. ;) And it felt great to get back in the saddle again.I'll keep scratching that bite this time :D
Don't think I'll go with the 40 flows. Think I'm leaning more to the Ultra flow Dynomax's.

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I am partial to the flows, but I have 3" 3 chambers on my '69!!! Have you heard of spintech mufflers there web site is www.spintechmufflers.com (http://www.spintechmufflers.com) they have some sounds on the website I have heard these on my buddies dodge truck and they sound awesome, not too obnoxious, but aggresive!!!!!
nice pic of your car at the strip!!!!!!

this may be a little more info than you want, but there's a bunch of comparison stuff that you may be interested in....

Which muffler flows the best?
Supposedly this review was performed by Martel Brothers:
All tests via an independent lab
All tests @ 15” wc
2 “ Straight Pipe 283 CFM
2 ¼ “ Straight Pipe 365 CFM
2 ½ “ Straight Pipe 521 CFM
2 ¼” Typical Bent tailpipe 268 CFM
2 ½” Typical Bent Tailpipe 417 CFM
2 ¼” Inlet/Outlet_ Glass Pack Tips- No Louvers- Smooth 274 CFM
2 ¼” Inlet/Outlet- Glass Pack Tips-Louvered 133 CFM
Same as above set for reverse flow 141 CFM
2 ¼” Cherry Bomb 239 CFM
2 ½” Cherry Bomb 294 CFM
2 ½” Inlet/Outlet Dynomax Super Turbo 278 CFM
2 ½” Inlet/Outlet Ultraflow Bullet 512 CFM
2 ½” Inlet/Outlet Gibson Superflow 267 CFM
2 ½” Inlet/Outlet Flowmaster ( 2 Chamber) 249 CFM
2 ½” Inlet Outlet Flowmaster ( 3 Chamber) 229 CFM
2 ¼” Inlet/Outlet Thrush CVX 260 CFM
2 ½” Inlet/Outlet Maremount Cherry Bomb 298 CFM
2 ½” Inlet/Outlet Hooker Aero Chamber 324 CFM
2 ½” Inlet/Outlet Hooker Max Flow 521 CFM
2 ½” Inlet/Outlet Borla Turbo 373 CFM
2 1/2" Inlet/Outlet Magnaflow 284 CFM
Standard OEM 2 ¼” Inlet/Outlet 138-152 CFM
Standard OEM 2 ½” Inlet/Outlet 161-197 CFM
The mandrel bending of the pipes done by aftermarket exhaust companies is good for 2-4 hp depending on the severity of the stock bends. Most local exhaust places don't have a mandrel bender so changing the pipes out doesn't do anything if pipe size it not increased.
My opinion, if its more noise and a little more power just add the best flowing stainless muffler to the current system and never do it again. If you increase pipe sizes, then a local shop and only stainless. Don't care about money but want ease and better gains than most local shops can offer with no pipe size increase, and aftermarket exhaust.
NOISE does NOT equal POWER!!!

Which muffler is quietest but makes the most power?
This test was performed by 5.0 Mustang & Super Fords Magazine, December 2002 issue (page 55) on a '90 Mustang LX coupe with 370hp and 11 second potential. 66 pulls were made for this comparison:
The results in HP order:
1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
2.Bassani Real Street 373.7 hp/ 333.8 tq
3.Hooker Maxflow 373.5 hp/ 333 tq
4.Borla XS 373.3 hp/ 332.6 tq
5.Magnaflow 372.8 / 332.5 tq
6.MAC 372.3 hp / 331.5 tq
7.Flowtech Afterburner 372.3 hp/ 330.1 tq
8.Hooker Aerochamber 372.1 hp/ 330.4 tq
9.Bassani 372 hp/ 333.5 tq
10.Spintech 371.6 hp/ 332.2 tq
11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
12.Borla XR1 370 hp/ 334 tq
13.Flowtech Terminator 369.5 hp / 331.3 tq
14.Dynomax Ultra Flo 369.4 / 333.2 tq
15.Flowmaster 369.4 hp / 331.8 tq
16.Flowtech Warlock 366.3 hp / 325.3 tq
17.No muffs 365.2 hp / 330.1 tq
Sound Off in Quietest to Loudest (Decibels):
1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db).
thread linky (http://www.chevelles.com/cgi-bin/forum/ultimatebb.cgi?ubb=get_topic;f=4;t=018760)

i went thru the same dilemia what muffler to get.......what would be better then my 7 year old california turbo mufflers that i bought for 15 bucks each back then?

well i looked and looked and i finally came across Fullboar mufflers.....for 40 bucks each i got the "full flow" design which are fully welded stainless muffler that was rated at 413 cfm flow, 2 1/2" inlet / outlet, and they was rated for engines up to 376 hp.

and they sound good on my car with 2 1/2 pipes from the headers to mufflers and 2 1/4" tail pipes........

i'm sure i dont have the best flowing system under my car but i tell ya what for the money out lay for the mufflers and for the sound it was worth it. anything was better then what i had to start with........

the mufflers i was leaning on before i came across these was the goerlich excelator mufflers http://www.pypesexhaust.com/ they had a good rating for cfm and they sound (just so happens) like what i have now.........if you down load there video for these mufflers this is what my exhaust sounds like......for the money the full boar mufflers i thought couldnt be beat.....i got two mufflers for the price of one georlich and i got the same noise and i feel i probly got just as good flowing muffler.........

might be something to check into.......

Thanx for all the replies guys.Hey Matt,that's alot of info.Good stuff.Making me think also to go out the back or just to run strait to the mufflers and dumps perhapse out the sides?Don't know if thats legal here in Jersey. :D

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