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Old 04-10-2008, 02:48 AM   #1
LilJayV10
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Dyno Don headers and 4in Mufflex

I thought I would post my exhaust setup here. I know not everyone cruises the readers section.

I had bought a set of 1 3/4 SLP headers a long time ago to put on my 406. I also ended up buying a set of AFR eliminator 195 heads a few months ago. I found the ports on the SLP's were smaller than the exhaust ports on the AFRs.



I sold the SLP's and bought Dyno Don's 1 3/4 headers with an almost complete y pipe.



I have a deep moroso pan that will let me use a "stock" style y pipe.

Here are some pic's comparing the two.









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Old 04-10-2008, 02:49 AM   #2
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Re: Dyno Don headers and 4in Mufflex

Headers on the car:




Dyno Don headers do not hit the steering shaft the way the SLP's sometime do.



The plug access is great. You also don't have do dent any tubes to clear spark plug boots.




I finally took the car to the exhaust shop yesterday. I had bought a used 4 inch Mufflex system off a board member a while back. This thing is huge. The guy that did my exhaust did a awesome job.

Driver side:




Passenger side:


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Old 04-10-2008, 02:51 AM   #3
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Re: Dyno Don headers and 4in Mufflex

Y pipe:



The y pipe is 2 1/2 into a merge. The merge is 4in O.D. and the Mufflex pipe is 4in I.D. so the two slide together. I hope this creates a scavenging effect and not turbulence.

Mufflex:






The ground clearance is really good. The car is lowered with Summit springs(pro kit) and I can fit a soda can under the lowest point. I will try to get pics of that soon.

I am very happy with the hole system. The headers fit great. The y pipe is awesome and so is the Mufflex. My exhaust guy beat the rear seat up little bit so he could tuck the pipe closer to the body. He said where it went over the axle there were a few problems but he fixed them, with a hammer I would imagine.

I hope to have the car running Sunday. I will get sound clips as soon as I can.

Jason
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Old 04-10-2008, 02:16 PM   #4
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Re: Dyno Don headers and 4in Mufflex

Looking good and thanks for posting the pictures. I see the tubular K member gives you more clearance for the exhaust by the oil pan. That might help me with a custom exhaust I'm thinking about. I have almost the same setup but into a 3 1/2" Mufflex system.
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Old 04-10-2008, 03:20 PM   #5
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Re: Dyno Don headers and 4in Mufflex

i wish i could get a tubular k member those are soo nice looking

very nice setup you got there
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Old 04-11-2008, 05:07 AM   #6
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Re: Dyno Don headers and 4in Mufflex

Quote:
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i wish i could get a tubular k member those are soo nice looking

very nice setup you got there
Thank you. It's taken a long time to get it together.
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Old 04-11-2008, 06:10 PM   #7
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Re: Dyno Don headers and 4in Mufflex

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Thank you. It's taken a long time to get it together.
Must have sound
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Old 04-12-2008, 10:23 AM   #8
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Re: Dyno Don headers and 4in Mufflex

Nice setup, wish Dyno Don would have sent out out the headers he made for me but was to anal to sit in line at the post office cause he was scared of the extra paper work involved to ship across the border

Anyways do you have pic's of the the exhaust ports on Don's headers, like to see how they compare to my Stainless works 1 3/4 LT's?
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Items to be installed: AFR 195 eliminator heads, zz9 cam, Stainless works LT 1 3/4 headers, Mufflex 4" catback


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Old 04-12-2008, 11:18 AM   #9
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Re: Dyno Don headers and 4in Mufflex

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Originally Posted by Tony89GTA View Post
Nice setup, wish Dyno Don would have sent out out the headers he made for me but was to anal to sit in line at the post office cause he was scared of the extra paper work involved to ship across the border
You're not very nice.
I'm not in the shipping business, I have a backlog of work to do and others that are waiting in line.

Others have made arrangements to get theirs shipped statewide which I have done.
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Old 04-12-2008, 11:44 AM   #10
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Re: Dyno Don headers and 4in Mufflex

Hey, Dyno Don!

I don't know you or your products. This post is the first I've heard of you!!

I have a sert of the SLP 1 3/4" headers like the original poster had. I paid to have a y pipe made, and its crappy 2.25" tubing and its semi kinked. Its a total bottleneck.

Will your Y Pipe work with my headers? My car is lowered. Will it work? Can you PM me some details and pricing etc?
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Old 04-12-2008, 01:22 PM   #11
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Re: Dyno Don headers and 4in Mufflex

Quote:
Originally Posted by Justin89Formy View Post
Hey, Dyno Don!

I don't know you or your products. This post is the first I've heard of you!!

I have a set of the SLP 1 3/4" headers like the original poster had. I paid to have a y pipe made, and its crappy 2.25" tubing and its semi kinked. Its a total bottleneck.

Will your Y Pipe work with my headers? My car is lowered. Will it work? Can you PM me some details and pricing etc?
No, mine are unique.
Here are some pictures:

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Old 04-12-2008, 02:04 PM   #12
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Re: Dyno Don headers and 4in Mufflex

Here's a pic of the exhaust ports



Here's a pic w/ the Earl's gasket Dyno Don uses



Collector



Dyno Don,

The guy that did my exhaust was really impressed with your headers and y pipe.
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Old 04-12-2008, 02:27 PM   #13
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Re: Dyno Don headers and 4in Mufflex

Tony89GTA: Throw in another $20 and I will go stand in line at the post office.
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Old 04-12-2008, 04:34 PM   #14
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Re: Dyno Don headers and 4in Mufflex

Hello Don, i was wondering if you offer a stepped/Merge collector style header ? 1-5/8 to 1-3/4 with merge-collectors... if so what thickness flanges do you use and what would they cost ??? Nice work by the way.
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Old 04-12-2008, 08:48 PM   #15
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Re: Dyno Don headers and 4in Mufflex

where did you get the mufflex 4" exh kit? i might need one.
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Old 04-14-2008, 01:56 AM   #16
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Re: Dyno Don headers and 4in Mufflex

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Tony89GTA: Throw in another $20 and I will go stand in line at the post office.
Hey I even offered him $50 more to do that and still got turned down, go figure
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Old 04-14-2008, 01:47 PM   #17
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Re: Dyno Don headers and 4in Mufflex

I live within 10 miles of Dyno Don's shop. For that money I will stand in line at the post office and ship them to you. Contact Don. I know why he does not want to stand in line at the post office as he is a very busy man.
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Old 04-14-2008, 03:56 PM   #18
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Re: Dyno Don headers and 4in Mufflex

Awesome looking setup. Bet it will be loud as hell too.

LilJayV10, do you have anymore pics of your car? That thing looks like a beast!
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Old 04-15-2008, 01:21 AM   #19
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Re: Dyno Don headers and 4in Mufflex

Quote:
Originally Posted by mattsv8_03 View Post
where did you get the mufflex 4" exh kit? i might need one.

You can get one from mufflex's website or try to find one used like I did. The catback is around $650 or so. I got one used for around $200.

Demon355,

Thank you for the compliment. Here's a link to my thread on the build of my car.

http://www.thirdgen.org/techboard/fi...r-finally.html
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Old 04-15-2008, 08:16 AM   #20
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Re: Dyno Don headers and 4in Mufflex

Quote:
Originally Posted by 1989GTATransAm View Post
I live within 10 miles of Dyno Don's shop. For that money I will stand in line at the post office and ship them to you. Contact Don. I know why he does not want to stand in line at the post office as he is a very busy man.
Ah wouldn't worry about it after looking at the ports kind of not impressed, that was my main reason for switching from SLP's, but thanks anyways

LilJayV10 you get any rattles from your 4" mufflex? I might pick up one for myself.
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Old 04-15-2008, 08:27 AM   #21
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Re: Dyno Don headers and 4in Mufflex

dyno don, you planning on any longtubes in the near future? right now it's lookin' like doug's headers are the way to go with longtubes...also, where do you get those badass looking headers gaskets?
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Old 04-16-2008, 04:27 AM   #22
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Re: Dyno Don headers and 4in Mufflex

Here's a link to the header gaskets.

http://store.summitracing.com/partde...0&autoview=sku

If he made long tubes and tucked them up, I'd probably try them too.

I had the Hooker LT's before and they hang low, especially on a lowered car.
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Old 04-16-2008, 11:51 AM   #23
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Re: Dyno Don headers and 4in Mufflex

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dyno don, you planning on any longtubes in the near future? right now it's lookin' like doug's headers are the way to go with longtubes...also, where do you get those badass looking headers gaskets?
No, sorry I'm not.
I have enough trouble keeping up with these.
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Old 04-17-2008, 11:02 AM   #24
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Re: Dyno Don headers and 4in Mufflex

Quote:
Originally Posted by mw66nova View Post
dyno don, you planning on any longtubes in the near future? right now it's lookin' like doug's headers are the way to go with longtubes...also, where do you get those badass looking headers gaskets?
He builds these because SLP stopped making theirs. You can still buy longtubes out there so there is no need for him to make some more.

The header gaskets are from Earl's.
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Old 04-17-2008, 11:26 AM   #25
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Re: Dyno Don headers and 4in Mufflex

there's still a bunch of other shortie headers being made, slp wasn't the only game in town...that seems like kind of a silly reason to build headers. guess i'll be going with doug's...the hedmans are going to be a restriction at some point...
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Old 04-17-2008, 07:52 PM   #26
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Re: Dyno Don headers and 4in Mufflex

Quote:
Originally Posted by mw66nova View Post
there's still a bunch of other shortie headers being made, slp wasn't the only game in town...that seems like kind of a silly reason to build headers. guess i'll be going with doug's...the hedmans are going to be a restriction at some point...