3.5" exhuast/mufflers
#2684581
08/05/19 09:33 AM
08/05/19 09:33 AM
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Joined: Jan 2003
Posts: 1,237 North Central, Indiana
Roughbird72
OP
pro stock
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OP
pro stock
Joined: Jan 2003
Posts: 1,237
North Central, Indiana
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I've been thinking of stepping up from a 3" to a 3.5" exhaust. I've looked at all kinds of mufflers online and the Magnaflows look temping , but want some input from some of you that run a 3.5" exhaust on a street/strip car. What are you running?
72 Plymouth Roadrunner 11.08@123.25
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Re: 3.5" exhuast/mufflers
[Re: Roughbird72]
#2684599
08/05/19 10:10 AM
08/05/19 10:10 AM
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Joined: Jan 2003
Posts: 11,729 Portage,michigan
B3422W5
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I Live Here
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Posts: 11,729
Portage,michigan
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Love my Kooks muffs on my street strip car. Car runs same numbers with or without. Polished stainless, sound great, great looking Mine are 3 inch They make a 3.5 in and out Part umber is R35-35-10
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, low 10.30’s 1/4 1.41 best 60 foot 6.56 at 104.17
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Re: 3.5" exhuast/mufflers
[Re: B3422W5]
#2684616
08/05/19 10:45 AM
08/05/19 10:45 AM
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Joined: Jan 2003
Posts: 13,404 Marion, South Carolina [><]
an8sec70cuda
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I Live Here
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I have 4" H pipe system that dumps at the axle on my cuda w/ Hooker Max Flow mufflers. They are a straight through style muffler and are surprisingly quiet. WAY quieter than I expected them to be. Been 5.60 at 126 in the 1/8 with them at nearly 3900 lbs.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: 3.5" exhuast/mufflers
[Re: B3422W5]
#2684641
08/05/19 11:37 AM
08/05/19 11:37 AM
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Joined: Nov 2004
Posts: 16,546 On the run…
BloFish
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I Live Here
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Posts: 16,546
On the run…
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I really like my SpinTech mufflers.
It really doesn't matter whether you win or lose… as long as you look good doing it!
‘65 A100 ‘69 ‘Cuda ‘73 Vega GT ‘06 Mega Cab ‘14 Mercedes SLK
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Re: 3.5" exhuast/mufflers
[Re: Roughbird72]
#2684855
08/06/19 04:51 AM
08/06/19 04:51 AM
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Joined: Nov 2010
Posts: 3,696 jersey
Spaceman Spiff
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master
Joined: Nov 2010
Posts: 3,696
jersey
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What is your current combination and why do you think you need 3.5 exhaust?
526 cubes of angry wedge, pushbutton shifted, 9 passenger killer!
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Re: 3.5" exhuast/mufflers
[Re: mopar dave]
#2684871
08/06/19 08:03 AM
08/06/19 08:03 AM
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Joined: Jan 2003
Posts: 11,729 Portage,michigan
B3422W5
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I Live Here
Joined: Jan 2003
Posts: 11,729
Portage,michigan
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Don, do you have a sound clip? Sorry Dave i dont. I will say they are the sweetest muffs i have ever had. They are pretty loud. Near Dynomax bullet loud. But at anything less than full throttle they do knock down a lot of noise on the street. Extremely good looking. Come over to Fri night test or the Northern Nats this Saturday at 131. You can hear them in person.
Last edited by B3422W5; 08/06/19 08:06 AM.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, low 10.30’s 1/4 1.41 best 60 foot 6.56 at 104.17
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Re: 3.5" exhuast/mufflers
[Re: B3422W5]
#2684873
08/06/19 08:13 AM
08/06/19 08:13 AM
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Joined: Jan 2003
Posts: 13,404 Marion, South Carolina [><]
an8sec70cuda
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I Live Here
Joined: Jan 2003
Posts: 13,404
Marion, South Carolina [><]
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Here's an idle clip of mine. https://www.youtube.com/watch?v=28K935z94dIHere's one at the track. A few clips of it on the street and then a pass at 1:00. Can hardly hear it over the turbo car. https://www.youtube.com/watch?v=d6W1SY1BFDQ
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: 3.5" exhuast/mufflers
[Re: Spaceman Spiff]
#2684875
08/06/19 08:20 AM
08/06/19 08:20 AM
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Joined: Jan 2003
Posts: 1,237 North Central, Indiana
Roughbird72
OP
pro stock
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OP
pro stock
Joined: Jan 2003
Posts: 1,237
North Central, Indiana
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What is your current combination and why do you think you need 3.5 exhaust? Older Hedman headers w/3.5 collector, 3" pinch bent head pipes and Dynomax 3" Ultra Flows, with current engine. There will be an engine change next year, 7.1" rod 463" with TF240 heads and probably change to TTIs in the process. It was a suggestion someone threw at me that a 3.5" exhaust may free up some power.
Last edited by Roughbird72; 08/06/19 08:29 AM.
72 Plymouth Roadrunner 11.08@123.25
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Re: 3.5" exhuast/mufflers
[Re: Roughbird72]
#2684879
08/06/19 08:35 AM
08/06/19 08:35 AM
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Joined: Jan 2003
Posts: 13,404 Marion, South Carolina [><]
an8sec70cuda
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I Live Here
Joined: Jan 2003
Posts: 13,404
Marion, South Carolina [><]
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Chip, I believe your car is quieter than mine at cruise and Idle. I posted the videos b/c I figured you might not believe me, lol. I was VERY surprised the first time I fired it up w/ the Hookers on it. It's quiet enough that I actually don't really like it, lol. I've just been so used to it being loud for so long. I normally race it w/ a pair of 4" Bullets right off the collectors, but the street car class I've been running they kinda frown on that b/c they are obviously real loud. I have not compared the Hooker system w/ my other "race" mufflers. I also have a pair of 4" one chamber Flowmasters I use occasionally just b/c I like the way they sound. They are wayyy louder than the Hookers are. The Flowmasters are what I've always run on the street. The 4" H pipe setup w/ the Hooker mufflers weighs about 60 lbs. so I'm sure just the weight alone is hurting it.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: 3.5" exhuast/mufflers
[Re: an8sec70cuda]
#2684880
08/06/19 08:37 AM
08/06/19 08:37 AM
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Joined: Jan 2003
Posts: 13,404 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,404
Marion, South Carolina [><]
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Here's a pic of the H pipe when it had the Flowmasters on it. I just swapped them for the Hookers...last pic.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: 3.5" exhuast/mufflers
[Re: B3422W5]
#2684882
08/06/19 08:45 AM
08/06/19 08:45 AM
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Joined: Jan 2007
Posts: 8,043 Mt Morris Michigan
mopar dave
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Mt Morris Michigan
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I would like to see and hear your car run, but I have a road trip to Detroit this weekend with some friends. I'm planning on a tnt at MidMichigan on Aug 30. If weathers good i'll be there, if not sept 7 I will be at Milan with the car. http://extrememufflers.com/, these are similar to a Borla, but cost way less. Been thinking about something quitter myself .
Last edited by mopar dave; 08/06/19 08:49 AM.
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Re: 3.5" exhuast/mufflers
[Re: mopar dave]
#2684883
08/06/19 08:58 AM
08/06/19 08:58 AM
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Joined: Jan 2003
Posts: 13,404 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,404
Marion, South Carolina [><]
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Another option...Ray (sixpackgut) put a pair of Dynatech Split Flow mufflers on his cuda and it sounds awesome! I believe they are 3.5".
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: 3.5" exhuast/mufflers
[Re: mopar dave]
#2684887
08/06/19 09:13 AM
08/06/19 09:13 AM
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Joined: Jan 2003
Posts: 11,729 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,729
Portage,michigan
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I would like to see and hear your car run, but I have a road trip to Detroit this weekend with some friends. I'm planning on a tnt at MidMichigan on Aug 30. If weathers good i'll be there, if not sept 7 I will be at Milan with the car. http://extrememufflers.com/, these are similar to a Borla, but cost way less. Been thinking about something quitter myself . This weekend is gonna pretty much be it for the season for me. Finally getting my hip replaced later this month
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, low 10.30’s 1/4 1.41 best 60 foot 6.56 at 104.17
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