And mine is close to same spot just bolted to head, no gasket. Guess Ill have to check it with the gasket.

 

Come on guys, lets put this to bed.

I have made up a few more sets and have moved the tubes around a little in that area, I know that it is close there and hopefully this will take care of that issue for the ones that are close. There isn't a lot of room right there and I have to make sure it will clear with the stock oil cooler.

Again I will say, anyone with that problem, send the thing back and I will get one of these coated and sent off to you.

 

Bravo -

 

I've also got Dyno Don's headers on my car and NO PROBLEMS!

One other thing. I note your comment: 8 of them had fittment issues due to clapsed motor mounts or the mounts are on the wrong side. I know it's frustrating,

These fitment issues were never disclosed.

Do you seriously claim that you need to be told that if the motor mounts are reversed or collapsed, there may be a fitment issue? I don't have nearly the experience with cars that you do and I would be embarrassed to make a statement like that.

 

Well I'm not 20 (I wish) and personally know of at least 30 cars with his headers (members of our car club) and have seen a dozen batches he made of over the last several years. They all fit. I needed a spacer in my passenger mount due to a sagging mount. They have been on my car for a least 5yrs. The first 3 years they were on a stock 305TPI and the same headers are my 355 transplant.
He's offered to exchange yours for a set I personally saw fit on a car in his shop that's in for repairs and they fit perfectly. You should except the offer to exchange and if the still hit it's on you.
Good Luck

 

This thread has convinced me to go with dyno dons headers for my third gen.

 

I also have sent an email requesting a quote..99.9% have been good reviews..good enough for me.

 

I'm actually planning on buying another set from Don soon, this time without AIR tubes, and I'm 100% confident that his headers will fit just as well as the set on my car now.

 

I just ordered a set today through TopDownSolutions.

 

Anyone have a long term review of the uncoated y-pipe & non coated inside of headers?

Did you guys have the insides & y-pipe coated after you bought them?


Just curious how these hold up against corrosion over time...


Thanks

 

SHORT TERM; I got my stuff in a little less than 2 months ago. Un-coated Y-Pipe/parts surface rusted before they were removed from the box. Last week I blasted/painted them to prevent it from spreading before the Y gets mounted.

Be prepared to treat those parts as soon as they arrive.

 

Ok, I send them back when I get ahold of a box this week. Thank you.

 

I thought these headers and Ypipe were stainless??? I do know there is several diff types of stainless and some have a lil more carbon in them which will flash rust but doesn't hurt anything. SLPs did the same thing and the Ypipes and intermediate pipes were a lower grade and really flash rusted fast..

 

The headers are ceramic coated, the Y-pipes aren't both are steal not stainless, I've had mine for at least 6 years now with no rust but i live in California.

 

I thought the y pipe was stainless. If it is and rusts its 409 stainless which the slps were made of. If it was 304 it would get kinda a gold color after heat cycles. From my understanding 409 is a lower grade stainless., ie cheaper than 304. Dont know if the the headers are 409 as well. I know the hawks are 304 thats why they are big$$. You get what you pay for.

 

Too bad hawks headers won't fit a car with a t-5 or t-56.

 

Yes and no. SLP made their headers out of 409 more for the fact they they could take the heating and cooling cycles better than 304. 304 in a header is ok in most header applications but in drag racing its known to crack from the heating and cooling while 409 can take it a bit better. For a street car either is fine though as far as im concerned.

 

That is great customer service Don!!!!

 

Get the y high temp powder coated and you're golden. That's what I did.

 

Oem uses 409. Its cheap and will outlast steel and will get them through warrenty periods. Imo 409 looks like crap after a few months to a few years depending on area you live. 304 is fine for most exhausts even headers. I know from what i read stainless works 304 is somehow a little diff from regular 304. Track or street it should be fine. When you get into turbo systems it might be another story. My slps I had fit like crap and looked the same. 3 seperate flanges as well. Kind of pointless imo to make headers for people tout them as stainless to forgo the coating and they rust anyway. At least the 304 can be polished up with a scotch brite to look new even after being run on the car for a while. But id still coat them anyway, just for the reduced temps , on any material header for that matter. Very worth it. I can attest to the difference on one set of headers. Heres the story. Tes edelbrocks. Sounded tinny and sounded a certain way uncoated plus opening the hood after getting up to temp it was a sauna. After coating, no tinney exhaust sound, exhaust actually sounded a little more defined and definatly not a cook show under the hood after shutting down. Same catback just headers coated. Whoever does dons does a good job btw. Muchs better than the jethot or hpc I used back in the day for booko bucks. I can actually get a set of long tubes coated inside and out shipped back to me under 300. Nitroplate and qc coatings. Compared to 400+ from jethot which I would never recommend as my tes units started rusting though after a year. I guess you can clasify 409 and 304 like this:
409=functional but ugly
304= functional and pretty
Lol

 

So you guys think the metal Dyno Don uses will last just fine being coated on outside only for the header and uncoated Y-pipe.

I don't wanna pay someone else to re-coat them on the inside or concern myself with the y-pipe corroding any time soon.

If you guys bolt them up as is and have success, that's all I need to hear to buy a set!

 

It should be fine as long as the coating isnt scratched or shaved off. Dont be to worryied. Expect a long life from the 409, its a lot longer than regular steel by a long shot. But it will rust up. 304 does not. If you have no emmisions consider a long tube design. Plain steel is crap in the rust belt uncoated. Lucky to last 2 years if that. Dont worry about it to much, wouldnt coat the ypipe anyway, would get constantly dinged by road debri anyway.

 

Like I said I've had them on my car for~6yrs now still in great condition. Go ahead they're the only 1 3/4" headers out there.
The Y-pipe needs to be welded, which would burn through and the coating and it would ruined.

 

I checked....
I can have the inside coated for an extra $70
I would paint the crossover with BBQ black heat paint.

 

I just installed my dyno dons this past weekend..I cannot be happier!! They fit and look great..and my 383 is loving them..Great Job to Don

 

I helped install the headers and noted some differences between my set and the newer Dyno Dons. The flanges between the primaries are narrower and it looks like the pipes were moved around a little to enhance fit. These things went in REALLY easy on manolis1969's car.

Finally sounds like what a real 383 should sound like.

 

update!!!!!!????? was the issue resolved? I would like a response from John or IROC1989!
It was a long thread with alot of back and forth and I would like to see how it all turned out.

 

By the time the headers were re-configured My X-member was already shaved & my headers were already installed. I was not about to incure another $100+ expense and even more 'down-time' to pull them out again.

Another member has reported that the headers changes were significant after he compared the new and old design, butno pictures of the newly positioned Primary Tubes / collector have ever been posted.

 

Not sure if you would notice any difference in pictures.

I am able to get the y-pipe material in aluminized coating now.

 

Just send me a free set with air tubes and will let you know how they fit.

 

Sure, no problem, just look under your Christmas tree tomorrow morning, of course it will depend on whether you have been naughty or nice.....

 

^^^^^^^^

 

Another satisfied customer here. Don has dealt with me since last November and has answered all of my questions/concerns in a professional manner.

These headers are made right, and look great. They were put on and my car sounds 10x better and can breath 100x better than my hooker headers. Don good work!

 

What do you get for them minus the y-pipe ?

I run my y-pipe inside the frame rails.

You don't do stainless do you? I hate ceramic.

Just curious.

-- Joe

 

How and where can I order Dyno Don's shortie headers and Y-pipe for my 1988 Iroc and how much will this set up cost?THANKS

 

PM Dyno Don here on the boards and order directly from him. Or you could order from Top down solutions but it will cost a bit more.

 

Pm him. Look at post 131

 

Dyno Don i need a set of your shortie headers for a 1988 Iroc with a SBC 400 engine email me at: dickeymoore@yahoo.com with info.THANKS

 

Sorry, no stainless
Joe..PM for price.
Be sure to mention what you are looking for (details)

 

Im bringing this thread back from the dead. Earlier in this thread the issues that people were having with K member clearance forced me to try to make a set of SLPs work on my angle plug heads. A few hundred dollars later and they just barely work and still leak a bit here and there (fail!). So i gave up and PM'd Don. My Dyno Dons came this past wednesday and are bolted on the car now.

Some observations for those that are interested but scared of K member issues. Don't be. Mine fit like a glove on both sides. Spark plug clearance is excellent as well for my angle plug dart heads. The big thing is use the hardware that Don recommends. There is no fitting a bigger bolt in there than the 5/16" head header bolts he recommends. The tubes are that big. I had most of those bolts from my failed SLP experiment but needed to order a few more. In closing i had these next to the old SLPs and the quality difference is immediately apparent. If you are right on the fence about ordering them i hope this pushes you over it. I dont regret it. Im looking forward to hearing no leaks on this damn car.

I will get pictures for this thread early next week hopefully. Im too busy this weekend with the american craft beer festival in BOSTON!!! WOOOHHHOOO.

 

Does Dyno Don Still create these bad boys? I remember reading about these things with the AIR tubes and everything!!!!! that would be something i would look into.......

 

Yes he does. Have a set on my car. Love them!

 

Nice!! Are you running with Air tubes or without?

 

Without, also running his single cat y-pipe minus the cat. All ran thru a SLP Loudmouth II cat back. The thing moves some air for being a single 3in. cat back.

 

http://www.top-downsolutions.com/pow...with-air-tubes

http://www.top-downsolutions.com/pow...hout-air-tubes

Yes Don still makes them and yes they are still available on Top-Down Solutions web site.

Lon

 

Depending your goals. If your needing shorties Dons about the only one I can think off. If you looking longtubes stainless works is one I recommend. They fit real nice.

 

Hey, if Don ever did say a 1 7/8 shorty ls1 conversion type header I would sure buy it when it comes time! I got faith in Don, he tries to help peeps out.

If you want to get mad at me and start bashing, well, feel free to because I made it past douschebag's like Ed Maher and the rest of his pathetic cronies that wanted to do that all day to people way back when, hell I was bashed here before I even became a member because flyinlow posted pics of my car he got at cardomain because I put a saleen style wing and ram air 2 hood on mine, main part was because I was the first ever in the world to put cobra r's on a trans am and made them look better than they was on a mustang!

Opinions are like *******s, everyone has one, headers are always gonna be a pita, none of them will ever be "perfect" sure you might find a set that has little to no problems for the majority but somewhere someone will have a issue sooner or later. Never fails, it's part of the trade, nothing is perfect in this world, nothing.

I'd about be willing to bet if you had those issues, and as soon as you put them in if you had took pics showing Don the deal, that that man would have said send them back to me and I will take care of it, but my guess is you may have modified them or something?

Either way, bashing and talking smack will get ya nowhere and you will end up right back at the same problem you started out with only then with hurt feelings and burnt bridges just like fist fighting.

Most of us know that through experience, some may have yet to learn that, but either way we all do sooner or later.

Best regards to both parties and I hope you can find a resolution to this issue.

 

I already got a resolution , this thread is old news. I told Don about the problem and he dragged his feet for a long time responding back to me. Ive had this car since 1995, and have had every set of headers on different motors you can think of. Tes, slp , stainless works and dyno dons. On my car and this is my personal experience the stainless works fit the best and are of the best quality. Dons did not fit well in my car , y pipe hit my frame. I sent him repeated emails and photos and I got very slow response and was never asked If I wanted to send then back to be swapped out until the very end of this thread when I made my problems public and at that point I had them off the car and bought stainless works long tubes. At that point I was done dealing with someone who couldnt believe that maybe a set he made was off. It was always not his work but my car or my install. Trust me my experience is far from some random opinion. Ive had so many aftermarket parts on this car in all the years Ive had it to know when somethings need a little tweak to fit or not. This isnt my first time at the rodeo. I know the world of aftermarket parts. And trust me I could care less to burn any bridges after that experience, there are plenty of capable individuals and companys that make third gen headers that Im sure I wont ever have a problem ever getting a set. After that I supported vendors that pay for their advertising here like Hawks and bought a set of headers through them. I feel if I had bought them through a paid vendor I would have been able to send them back asap when I found issues. Hey im not bashing anyone at this point , its water under the bridge now. I never got any kind of apology or anything from him, so that is my lasting impression of the guy. Obviously he makes headers alot of guys like. They seem to dyno well on the magical southern CA dynos too. It worked out for the best because I pulled the motor anyway and shorties just wernt going to cut it on my new combo. So I have no hard feelings towards don, but I would never buy anything from him again. I also feel if he is selling headers on this site he should be paying fees like everyone else. I paid him with a money order, if it was with a credit card you can bet this would have been solved alot faster. Take it for what its worth. Thats what happened and no one can dispute it. Take care

 

Darren:
I'm sorry you never got the fit right on your car, but you forgot to mention you sold them to someone else and they didn't have any problems, nor have a lot of others.
Sure there were a couple of glitches down the road but they seemed to have gotten worked out. Some have motor mounts switched others with oil pan issues...it happens.
Like the man said, this is not a perfect world we live in.
I will always go out of my way to assist if they are problems.
I didn't offer to send them back because you bashed them in with hammer.
So lets move on.

 

Don's headers fit my car just fine, even though my car was tweaked twice in 2 accidents.

They're a good product.