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Want to quiet down the RR #1485661 08/17/13 01:07 PM 08/17/13 01:07 PM
Joined: Sep 2003 Posts: 2,966 Wendy, I'm home. dstryr OP master
dstryr OP master Joined: Sep 2003 Posts: 2,966 Wendy, I'm home.	My exhaust guy talked me out of using the dynomax superturbos I had purchased and I ended up with magnaflows on the RR. It is too loud and now I'm looking to quiet it down because I am using ear plugs every time I go for a cruise so I don't have ringing ears for a day or two after. Engine is 505" 10.2 compression XS290S cam with 2" Doug's headers, 3" pipes with an 'H' then 3" out to the chrome tips. When I let him talk me out of the super turbos his argument was about the sound. Now he's telling me he thinks the exhaust pulses will destroy a turbo style muffler and he's really dragging his feet on trying to find a more quiet muffler. Please shoot me some ideas, I really want to be able to drive it without plugging every time. Thanks, Frank dstryr, since 1986.

Re: Want to quiet down the RR [Re: dstryr] #1485662 08/17/13 01:35 PM 08/17/13 01:35 PM
Joined: Jul 2012 Posts: 429 Washington skrews mopar
skrews mopar Joined: Jul 2012 Posts: 429 Washington	Magnaflows are nothing but straight through glass packs, its no wonder its loud. Guys around here have had excellent results with Borla XR1 mufflers. Use an X pipe if you can.

Re: Want to quiet down the RR [Re: skrews] #1485663 08/17/13 01:42 PM 08/17/13 01:42 PM
Joined: Jan 2003 Posts: 21,073 Niles , Ohio T therocks oh wait.but hey.lets see.oh yeah.
therocks oh wait.but hey.lets see.oh yeah. T Joined: Jan 2003 Posts: 21,073 Niles , Ohio	Summit Stainless.I run 3 inch on my built 440 exit in frt of tires.Not loud but deep and mellow.Rocky Chrysler Firepower

Re: Want to quiet down the RR [Re: skrews] #1485664 08/17/13 01:44 PM 08/17/13 01:44 PM
Joined: Feb 2003 Posts: 6,849 F fullmetaljacket master
fullmetaljacket master F Joined: Feb 2003 Posts: 6,849	X pipe it and add the fabulous Dynomax Ultra-Flo's welded mufflers. You won't be disappointed with neither the exhaust tone or the bad to the bone exhaust flo. Those cubes need to breath, but it doesn't have to be a Paul Revere while out on the town.

Re: Want to quiet down the RR [Re: fullmetaljacket] #1485665 08/17/13 03:14 PM 08/17/13 03:14 PM
Joined: Feb 2011 Posts: 4,302 Nebraska 72Swinger master
72Swinger master Joined: Feb 2011 Posts: 4,302 Nebraska	I second the the vote for XR1's. Their new xs 3" muffs would be good too. Mopar to the bone!!!

Re: Want to quiet down the RR [Re: fullmetaljacket] #1485666 08/17/13 03:20 PM 08/17/13 03:20 PM
Joined: Jan 2003 Posts: 9,875 Weddington, N.C. Streetwize master
Streetwize master Joined: Jan 2003 Posts: 9,875 Weddington, N.C.	I have Dynomax Super turbos and a TTI x pipe on my 517, love the sound. Go to YouTube and type in Wizerulz for sound clips. I like the Ultraflows too, but on a 700 horse motor with 12:1 and a roller on a tight lobe spread they're too loud for my tastes, to me they'ed be fine on a 10.5:1 600-625 horse 500 inch, the super turbos were almost too mellow on my old 508....opinions vary though. My new motor with Ultraflows and bullet muffs as resonators would be fine....or maybe the VT's would also be good at part throttle WIZE World's Quickest Diahatsu Rocky (??) 414" Stroker Small block Mopar Powered. 10.84 @ 123...and gettin' quicker! https://www.youtube.com/watch?v=-mWzLma3YGI In Car: https://www.youtube.com/watch?v=PjXcf95e6v0

Re: Want to quiet down the RR [Re: dstryr] #1485667 08/17/13 03:46 PM 08/17/13 03:46 PM
Joined: Mar 2008 Posts: 5,746 Ontario, Canada Dodgem master
Dodgem master Joined: Mar 2008 Posts: 5,746 Ontario, Canada	Sounds like you like a mild mello sound. Dynomax super turbos and and x pipe will do exactly what you want. I ran 2 1/2" super turbos with an H pipe for years they were real quiet nice low throaty sound almost but not quite too quiet. I now have 3" X pipe and welded ultra flows still mello and quiet just right for me. this is with what i have now http://www.youtube.com/watch?v=EyftKsl3wWI Dynomax believes in making power not noise

Re: Want to quiet down the RR [Re: dstryr] #1485668 08/17/13 05:40 PM 08/17/13 05:40 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	You need a chambered muff to kill noise OR a very large case that double walled(and I dont mean flowmasters).. a straight threw with the holes only takes out certain frequency pluses ... also I assume you have them in the stock location... the turbo style muffs work pretty good in that location.. if you move them back to the bumper you can get away with a different style because the exhaust is cooler

Re: Want to quiet down the RR [Re: MR_P_BODY] #1485669 08/17/13 11:33 PM 08/17/13 11:33 PM
Joined: Sep 2003 Posts: 2,966 Wendy, I'm home. dstryr OP master
dstryr OP master Joined: Sep 2003 Posts: 2,966 Wendy, I'm home.	Its been a while and can't get to the receipt for the mufflers I originally supplied, which is in a file cabinet in a storage unit. IIRC, I had supplied one of the following, seems like I had the 20" shell and he had them mocked up. We looked at these again and he pretty much said the 5.5 x 11" cases were truck mufflers. Bobby, what are you using? Will the 17744 do the job? http://www.jegs.com/i/Dynomax/289/17744/10002/-1?parentProductId=744698 Dynomax#289-17744 Super Turbo Muffler In/Out: 3" Overall Length: 20" Shell Length: 14'' Body Diameter: 4.25" x 9.75" http://www.jegs.com/i/Dynomax/289/17769/10002/-1?parentProductId=744698 Dynomax#289-17769 Super Turbo Muffler In/Out: 3" Overall Length: 27" Shell Length: 20'' Body Diameter: 5.5" x 11" http://www.jegs.com/i/Dynomax/289/17793/10002/-1?parentProductId=744698 Dynomax#289-17793 Super Turbo Muffler In/Out: 3" Overall Length: 23" Shell Length: 16'' Body Diameter: 5.5" x 11" dstryr, since 1986.

Re: Want to quiet down the RR [Re: dstryr] #1485670 08/18/13 12:02 AM 08/18/13 12:02 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Its been a while and can't get to the receipt for the mufflers I originally supplied, which is in a file cabinet in a storage unit. IIRC, I had supplied one of the following, seems like I had the 20" shell and he had them mocked up. We looked at these again and he pretty much said the 5.5 x 11" cases were truck mufflers. Bobby, what are you using? Will the 17744 do the job? http://www.jegs.com/i/Dynomax/289/17744/10002/-1?parentProductId=744698 Dynomax#289-17744 Super Turbo Muffler In/Out: 3" Overall Length: 20" Shell Length: 14'' Body Diameter: 4.25" x 9.75" http://www.jegs.com/i/Dynomax/289/17769/10002/-1?parentProductId=744698 Dynomax#289-17769 Super Turbo Muffler In/Out: 3" Overall Length: 27" Shell Length: 20'' Body Diameter: 5.5" x 11" http://www.jegs.com/i/Dynomax/289/17793/10002/-1?parentProductId=744698 Dynomax#289-17793 Super Turbo Muffler In/Out: 3" Overall Length: 23" Shell Length: 16'' Body Diameter: 5.5" x 11" I would go with the 17769 if I were you... it has a larger body all around to kill the noise better

Re: Want to quiet down the RR [Re: MR_P_BODY] #1485671 08/18/13 12:41 PM 08/18/13 12:41 PM
Joined: Apr 2011 Posts: 1,520 West Palm Beach, Florida Copper Dart pro stock
Copper Dart pro stock Joined: Apr 2011 Posts: 1,520 West Palm Beach, Florida	I'm all ears on this subject. I don't want an obnoxious level and I want to enjoy driving it too without killing the engines breathing. Do the fiberglass packed ones last? Common sense, the least common of all the senses. Mom. For fear of ridicule, society stifles creativity. Ricky Valdes

Re: Want to quiet down the RR [Re: MR_P_BODY] #1485672 08/18/13 03:59 PM 08/18/13 03:59 PM
Joined: Feb 2007 Posts: 2,578 sweden 1 1Fast340 master
1Fast340 master 1 Joined: Feb 2007 Posts: 2,578 sweden	Quote: Quote: Its been a while and can't get to the receipt for the mufflers I originally supplied, which is in a file cabinet in a storage unit. IIRC, I had supplied one of the following, seems like I had the 20" shell and he had them mocked up. We looked at these again and he pretty much said the 5.5 x 11" cases were truck mufflers. Bobby, what are you using? Will the 17744 do the job? http://www.jegs.com/i/Dynomax/289/17744/10002/-1?parentProductId=744698 Dynomax#289-17744 Super Turbo Muffler In/Out: 3" Overall Length: 20" Shell Length: 14'' Body Diameter: 4.25" x 9.75" http://www.jegs.com/i/Dynomax/289/17769/10002/-1?parentProductId=744698 Dynomax#289-17769 Super Turbo Muffler In/Out: 3" Overall Length: 27" Shell Length: 20'' Body Diameter: 5.5" x 11" http://www.jegs.com/i/Dynomax/289/17793/10002/-1?parentProductId=744698 Dynomax#289-17793 Super Turbo Muffler In/Out: 3" Overall Length: 23" Shell Length: 16'' Body Diameter: 5.5" x 11" I would go with the 17769 if I were you... it has a larger body all around to kill the noise better +1 it will also flow better than the 17744 with more room for flow around the tubes inside the muffler

Re: Want to quiet down the RR [Re: 1Fast340] #1485673 08/18/13 04:10 PM 08/18/13 04:10 PM
Joined: Sep 2004 Posts: 6,906 IL, Aurora A ademon master
ademon master A Joined: Sep 2004 Posts: 6,906 IL, Aurora	Dynomax super turbo with magnaflo resonators befor the tips

Re: Want to quiet down the RR [Re: ademon] #1485674 08/18/13 10:41 PM 08/18/13 10:41 PM
Joined: Apr 2009 Posts: 3,415 Toronto M mshred master
mshred master M Joined: Apr 2009 Posts: 3,415 Toronto	Sorry, but if you think magnaflows are loud with the setup you listed, the Borla XR-1's will be even harder to tolerate...they are not a quiet muffler (and imo I have always felt magnaflows are). I would try the dynomax ultra flows in the largest body you can fit, as they sound good but are quiet...Those and the magnaflows would be my choices for quiet, but if your current ones are too loud, maybe try ultra flows and some resonators as well? I love XR-1's, but definitely not quieter than the magnaflows...and thats from personal experience using them...Just my

Re: Want to quiet down the RR [Re: mshred] #1485675 08/18/13 11:03 PM 08/18/13 11:03 PM
Joined: Sep 2003 Posts: 2,966 Wendy, I'm home. dstryr OP master
dstryr OP master Joined: Sep 2003 Posts: 2,966 Wendy, I'm home.	We looked at putting resonators before the tips but there is not enough room between the springs and gas tank. Maybe if I used a 2-1/2" tailpipe, but it has 3" to the tips now. Will the 5.5"x11" case fit in the stock location on a '69 b-body? I don't think my exhaust guy is going to order in mufflers until I'm happy; I'd like to know they'll fit before we order them. dstryr, since 1986.

Re: Want to quiet down the RR [Re: dstryr] #1485676 08/19/13 01:31 AM 08/19/13 01:31 AM
Joined: Jan 2003 Posts: 660 River Falls, WI urdustd mopar
urdustd mopar Joined: Jan 2003 Posts: 660 River Falls, WI	I have 2.5" x-pipe and the welded UltraFlows on a mild small block and it is far from quiet. If you don't like the Magnaflows don't get the Ultras! I think you are correct in going for the Superturbos and buy the case size so you can just swap out your current setup. Just my BTW post up a video or sound clip before and after if you can!

Re: Want to quiet down the RR [Re: urdustd] #1485677 08/19/13 01:43 AM 08/19/13 01:43 AM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	HOOKER AERO CHAMBERS .... I am truckless..

Re: Want to quiet down the RR [Re: 340SHORTY] #1485678 08/19/13 03:48 AM 08/19/13 03:48 AM
Joined: Aug 2004 Posts: 214 Hamburg / Germany D Den300 enthusiast
Den300 enthusiast D Joined: Aug 2004 Posts: 214 Hamburg / Germany	Same problem here. 440 0.30 over with 10.8:1 comp and a street solid roller. 1.75" headers to 3" exhaust with h-pipe and magnaflows. 100db at idle IN the car and 120db 1m behind the exhaust. bought the dynomax turbos (17769) and will put them under coming weekend. will do some short video clips to compare both. right now I am driving with ear plugs only too. Hamburg/Germany 69 Chrysler 300 446cui Dual Quad 12.64 @ 110.7

Re: Want to quiet down the RR [Re: dstryr] #1485679 08/19/13 05:35 AM 08/19/13 05:35 AM
Joined: May 2008 Posts: 5,399 Aurora, Colorado 451Mopar master
451Mopar master Joined: May 2008 Posts: 5,399 Aurora, Colorado	I think the SuperTurbo is about the quietest 3" muffler that I know of. I wanted something quieter than that and had to goto 2-1/2" exhaust to find a quieter muffler.

Re: Want to quiet down the RR [Re: 451Mopar] #1485680 08/19/13 12:28 PM 08/19/13 12:28 PM
Joined: Jan 2011 Posts: 4,785 Utah and Alaska astjp2 master
astjp2 master Joined: Jan 2011 Posts: 4,785 Utah and Alaska	Why not just add resonators? Don't they muffle the sound enough to take away from the loudness? 1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta I didn't do 4 years and 9 months of Graduate School to be called Mister!

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