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Old Mar 31, 2023 | 05:14 PM
  #1  
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DynoDon headers

Nothing lasts forever so with that being said.......

To anyone interested...
My plan is to make 10 more sets of headers
but the header shop wants me to pay for the material
in advance. The only way I can do that is "IF" I get
at least 8 orders for them.
So if you have been on the fence about getting a set, now is the time
to act and get your orders in.

PS: If not, that will be the end, I will hang it up and they will no longer be available.

Dyno Don
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Old Mar 31, 2023 | 06:51 PM
  #2  
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Re: DynoDon headers

Cost for the headers shipped to zip code 78660?
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Old Apr 1, 2023 | 03:07 AM
  #3  
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Car: 1989 IROC-Z 305 LB9 AT Convertible
Engine: LB9 305
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Re: DynoDon headers

How about a set for my 1989 IROC Z Vert, AT, AC. Can you build a set for a to be installed, L98 or L31 , including AIR fittings and the appropriate EGR supply port? Would the L98 and L31 uses the same header? Are they stainless steel? Ceramic coated? 84780, Utah Price?

Thank you!
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Old Apr 1, 2023 | 07:49 AM
  #4  
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Re: DynoDon headers

Interested. Do we place the order through "Topdownsolutions"? And is shipping to Canada an issue?
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Old Apr 2, 2023 | 10:25 AM
  #5  
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Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

Originally Posted by 91formula_WS6_5
Interested. Do we place the order through "Topdownsolutions"? And is shipping to Canada an issue?
Yes for Canada TDS
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Old Apr 2, 2023 | 10:28 AM
  #6  
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Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

Originally Posted by mikeceli
How about a set for my 1989 IROC Z Vert, AT, AC. Can you build a set for a to be installed, L98 or L31 , including AIR fittings and the appropriate EGR supply port? Would the L98 and L31 uses the same header? Are they stainless steel? Ceramic coated? 84780, Utah Price?

Thank you!
Same header for both..... EGR port no....not stainless but are coated
Price sent to PM
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Old Apr 3, 2023 | 10:54 AM
  #7  
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Car: 92 Heritage Camaro Z28
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Re: DynoDon headers

Send me a price for a 92 z28 5.7

Thanks

Manny
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Old Apr 3, 2023 | 12:01 PM
  #8  
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Re: DynoDon headers

Hi Don!
Are you able to do a set of headers and Y Pipe for a 350, manual transmission, F body that has dual cats?
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Old Apr 3, 2023 | 12:33 PM
  #9  
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Re: DynoDon headers

Originally Posted by Dyno Don
Same header for both..... EGR port no....not stainless but are coated
Price sent to PM

TDS site shows the "Corvette style EGR Style Flange" as a $ 40 option, "replaces one AIR Tube" No more? It's what I, and others might need, to put an L31 in a third Gen F body. right?
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Old Apr 3, 2023 | 06:24 PM
  #10  
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Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

Ok. yes I can do that EGR connection
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Old Apr 3, 2023 | 06:25 PM
  #11  
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Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

Are you able to do a set of headers and Y Pipe for a 350, manual transmission, F body that has dual cats?

Yes I can
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Old Apr 8, 2023 | 06:56 PM
  #12  
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Re: DynoDon headers

Any chance of getting front mount turbo headers/Downpipe for a 92 5 speed (firebird) tpi?

Last edited by Vanilla Ice; Apr 8, 2023 at 09:03 PM.
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Old Apr 9, 2023 | 11:26 AM
  #13  
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

Originally Posted by Vanilla Ice
Any chance of getting front mount turbo headers/Downpipe for a 92 5 speed (firebird) tpi?
Uh....no
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Old Apr 16, 2023 | 07:59 AM
  #14  
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Re: DynoDon headers

Good morning, I would like to order some headers before is done.

1992 350 z28.

where can I place my order?

Sean McGrath
Plano TX
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Old Apr 16, 2023 | 11:49 AM
  #15  
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Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

Originally Posted by MaverickRV7
Good morning, I would like to order some headers before is done.

1992 350 z28.

where can I place my order?

Sean McGrath
Plano TX
Send a PM to me.
Reply
Old Apr 17, 2023 | 12:11 PM
  #16  
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Re: DynoDon headers

I would like to order a set, but for my needs, I think I want SMOG/Ca legal headers or none at all.

Of course, I do not expect Dyno Don to pay cali, maybe, $ 50,000 dollars to "test" and "certify" his product!

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Old Jun 2, 2023 | 02:42 PM
  #17  
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Transmission: Tremec T-56
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Re: DynoDon headers

Bump ^
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Old Jun 5, 2023 | 03:17 AM
  #18  
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Car: 92 Rs. And 2001 dodge ram 1500
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Axle/Gears: 3.08
Re: DynoDon headers

Originally Posted by Dyno Don
Nothing lasts forever so with that being said.......

To anyone interested...
My plan is to make 10 more sets of headers
but the header shop wants me to pay for the material
in advance. The only way I can do that is "IF" I get
at least 8 orders for them.
So if you have been on the fence about getting a set, now is the time
to act and get your orders in.

PS: If not, that will be the end, I will hang it up and they will no longer be available.

Dyno Don
I need a set for a 92 Camaro 305 tbi with ac and 5 speed transmission how much shipped to Princeton WV 24740
Reply
Old Jun 6, 2023 | 10:05 AM
  #19  
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Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

You have a PM
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Old Jun 6, 2023 | 09:42 PM
  #20  
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Re: DynoDon headers

Are you able to make a set of 1-7/8 into 3” collector? Auto trans, stock k member.
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Old Jun 7, 2023 | 10:02 AM
  #21  
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Transmission: Tremec T-56
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Re: DynoDon headers

Sorry, no.
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Old Jun 10, 2023 | 02:37 PM
  #22  
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Re: DynoDon headers

All our best options are drying up!!!
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Old Jun 15, 2023 | 05:46 PM
  #23  
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Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

Message for "Luis 1991"
I can't reply to your PM as you are a new member with "0" posts.
Contact JT

Or email me @ dynodon9@yahoo.com

Last edited by Dyno Don; Jun 15, 2023 at 05:48 PM. Reason: note
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Old Jun 15, 2023 | 07:08 PM
  #24  
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Re: DynoDon headers

Hi Don, I’m interested in another set without any air tubes. These are 2 3/4” right? PM me a price!
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Old Jul 6, 2023 | 01:04 PM
  #25  
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Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

I have one more available
if anyone wants to order.
Reply
Old Jul 7, 2023 | 03:09 PM
  #26  
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Re: DynoDon headers

Originally Posted by Dyno Don
I have one more available
if anyone wants to order.
I’ve been interested in a set of headers for a mild 327, y pipe into single 3”, and intermediate pipe with no converter provision. I was going to wait until fall but I’m glad saw this post. Is this still available and approximate cost?
Reply
Old Jul 7, 2023 | 10:00 PM
  #27  
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Re: DynoDon headers

How much is a pair?
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Old Jul 9, 2023 | 11:06 AM
  #28  
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Re: DynoDon headers

Originally Posted by smitty040
I’ve been interested in a set of headers for a mild 327, y pipe into single 3”, and intermediate pipe with no converter provision. I was going to wait until fall but I’m glad saw this post. Is this still available and approximate cost?
It looks like I can’t message direct as I’m newly registered but longtime follower of this site. You can reach me at smitty_040@yahoo.com with pricing and availability
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Old Jul 20, 2023 | 08:14 AM
  #29  
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Re: DynoDon headers

Is it too late? 87 firebird with a 350. Cost?
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Old Jul 23, 2023 | 01:22 AM
  #30  
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Re: DynoDon headers

I bought a set from you a few years ago. Would I be able to get a replacement passenger side without air tubes and add an O2 bung or do I have to buy a new set?
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Old Jul 23, 2023 | 09:32 AM
  #31  
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Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

Originally Posted by Drgnbld
I bought a set from you a few years ago. Would I be able to get a replacement passenger side without air tubes and add an O2 bung or do I have to buy a new set?
I can add an 02 to yours or is the header bad?
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Old Jul 23, 2023 | 09:41 AM
  #32  
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Re: DynoDon headers

Nothing wrong with it as I have yet to install them.
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Old Oct 5, 2023 | 04:38 PM
  #33  
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Re: DynoDon headers

I guess I missed the party!

if I’m wrong and you are still taking orders, please let me know.
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Old Oct 5, 2023 | 05:27 PM
  #34  
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Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

I have ceased making them for now, Top-downs solutions will be putting together a group purchase.
If enough participants join I will consider another batch.
However, you will not be required to purchase from them.
I might still be available direct.

Don>>>
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Old Oct 5, 2023 | 05:59 PM
  #35  
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Re: DynoDon headers

Sounds good, put me in line please.

I have a 91 B4C that the headman headers will just not work on the driver side. Ended up putting manifolds back on.

the header hits the oil cooler lines.
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Old Oct 10, 2023 | 10:10 AM
  #36  
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Re: DynoDon headers

Will Top-Down be informing us of a group purchase here?
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Old Oct 10, 2023 | 04:42 PM
  #37  
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Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

I think so, if not I will post it here.
Reply
Old Oct 15, 2023 | 11:43 PM
  #38  
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Re: DynoDon headers

Interested in a set as well. What about the Y pipe?
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Old Oct 16, 2023 | 02:28 PM
  #39  
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Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

Originally Posted by OddJack
Interested in a set as well. What about the Y pipe?
I still have the y-pipes
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Old Oct 26, 2023 | 10:25 AM
  #40  
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Axle/Gears: 10 Bolt w/Yukon Duragrip and 3.73s
Re: DynoDon headers

Please count me in if you decide to do another batch of headers and single cat y-pipe.
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Old Oct 29, 2023 | 07:25 PM
  #41  
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Car: 1989 Iroc-Z
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Re: DynoDon headers

I would be interested for a set of headers and single cat y-pipe as well.
Reply
Old Nov 10, 2023 | 06:15 PM
  #42  
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Transmission: 700 R4 auto trans
Axle/Gears: 10 bolt w/girdle & 3.42 MotiveGears
Re: DynoDon headers

I would like to thank Dyno Don for creating these headers and making them as long as he did.
It is too bad someone couldn't continue to make them in the future for those of us who long to buy the best but can never seem to pull the trigger.

Since our cars are between 41 and 31 years old, parts are going to get harder to find as each passing year goes by.

Thanks again Don.
Maybe I'll get lucky and locate a used pair some time in the future.
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Old Nov 11, 2023 | 12:28 PM
  #43  
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Re: DynoDon headers

Hey everyone, I emailed Dyno Don to see about getting a y pipe and headers made for my 3rd gen camaro with an sbc. I want tap sets but he said if he gets enough people he would look at making more sets so anyone that wants them should reply to this thread. Thanks!
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Old Nov 12, 2023 | 02:16 PM
  #44  
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Re: DynoDon headers

What was the cost of these around again?
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Old Nov 13, 2023 | 10:13 AM
  #45  
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re: Single vs. Dual pipe exhaust flow, which is better?

Originally Posted by Dyno Don
Don't forget 1 1/2" flow tech are 1 3/8 inside diameter
2055's are 1 5/8" inside they are 1 1/2"
Most good heads have 1 5/8" exhaust valves
1 3/4" headers are 1 5/8 inside diameter
Is it a good idea to use a smaller header with larger valves?
Hey there Don, I am curious, are you able to fab up some turbo manifolds? Planning a 406 tpi build with either single or twin turbos, account is too new to pm yet. Let me know, thanks!
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Old Nov 14, 2023 | 08:35 AM
  #46  
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Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
re: Single vs. Dual pipe exhaust flow, which is better?

Originally Posted by Jaybird47
Hey there Don, I am curious, are you able to fab up some turbo manifolds? Planning a 406 tpi build with either single or twin turbos, account is too new to pm yet. Let me know, thanks!
No. I can't
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Old Nov 14, 2023 | 05:32 PM
  #47  
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Re: DynoDon headers

I am definitely interested in a set of headers and the y-pipe in the next group order!
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Old Nov 17, 2023 | 02:30 PM
  #48  
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Re: DynoDon headers

Id' be interested in a set. Not swapping my motor for another year and a half tho. Sad to hear this option is closing. I may just gamble on a set for my planned setup if there's another run..
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Old Nov 17, 2023 | 03:14 PM
  #49  
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I'd like two sets of headers and two down pipes for sbc 3rd gen setup

My friend and I both want two sets of headers with the y pipe for our third gens, i would buy both sets. Thanks!
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Old Nov 17, 2023 | 04:33 PM
  #50  
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From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: DynoDon headers

Originally Posted by sbrown
Is it too late? 87 firebird with a 350. Cost?
Send me a PM for quote and options
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