Very good price for both buyer and seller. Also, shout-out to the legendary 560SEC wizard,  @magicbigdaddy

@SwissBliss  No offense taken! I have zero interest in aftermarket mods as they hold little to no value. 

nice win @Thorkulbeck i  would have had to come up with an excuse with the Mrs. haha

Super sprint makes down pipes that go with these Tri-Y’s. https://www.supersprint.com/ww-en/mercedes-c126-sec-coupe/supersprint-performance-sport-exhaust-for-mercedes-c126-sec-560/840411-downpipe-kit-for-oem-manifold.aspx#!

Having years of experience with factory Tri-Ys these parts are 2/3 of a useable addition to w126. Down pipes are necessary and of a very precise design/build. Have never seen any precise dimensional drawings published. Since there apparently is no roadmap to constructing these critical components I think most exhaust/muffler shops would not have a clue how to make these parts work. Each down pipe is unique with specific bends etc. Tri-Ys are a wonderful upgrade for US w126 but one needs the complete system that attaches to many common exhaust/muffler systems. Best of luck for the new owner of these parts.   

@AMGMB  i dm’d you my zip and the shipping cost estimator on this listing provided me with those two figures for covered and open shipping. 

Nice Tri-Y's! I recently bought a set for my AMG SEC complete with heat shields and downpipes. I paid $1,200 delivered, but still have to spend ~$400 for ceramic coatings. I just sold a set last week for r107's for $1,600. They weighed 29.6lbs and cost $117 to have them professionally packaged at the UPS store and shipped ground about 1,000 miles away with $1,700 of insurance, if that helps.

Will these bolt up to my 116 420 engine and heads in my 1991 SEL?

gosh, wish you were closer. $1,148.99: & $1,854.51 for shipping to Nashville, TN. 

@MBFahrer - what does that even matter, especially on an 83 500se (no offense, seriously...) -- the only person that would know would be you, the fact that the downpipes are not AMG is such an incredibly trivial detail that does not matter, especially on a non-AMG car. The only reason these are so valued is that they are damn near perfect headers which would cost many thousand for a custom exhaust shop to create with a similar or higher (if possible) level of performance. The downpipes just connect the headers to the rest of the exhaust, essentially straight tubes...

If I had to choose from my $2000 (I checked what I had paid and it wasn't $1750 :-( ) set that included downpipes, but not ceramic coated, vs. these and had my exhaust shop fab downpipes (while they were fabbing the rest of the exhaust anyway) , it would be a no-brainer.... ESPECIALLY if I could get them for same price or less, considering I was quoted $400+ for ceramic coating.

Someone is going to get a helluva deal, regardless of price, just due to how rare these are. If you have a W126 or 560SEC , JUMP ON THESE....

BRB... going to post this ad to BenzWorld to help seller (& my SEC friends) out. GLWA!!!

@TheAMGKit No, I am not interested in custom. AMG only. 

seller did you put a set on your black sec or did u go custom

as for not having the down pipes... just make a custom set. Will probably fit better

These are fantastic, but missing a lot. Do you have the downpipes, heat shields, exhaust brackets that are needed to fit these to a car? If not, are any of those pieces available from Mercedes? I have an 83 500se these headers would go on. 

WOW!!! These are the holy grail right here....

For reference, I paid $1750 earlier this year, and they were not as nice nor ceramic coated like these. They did have downpipes though...

Add a custom exhaust with X Pipe & Cat delete and muffler of choice (I went with a valved Valvetronic kit which allows you to open them up at the push of a wireless button) and you are in sonic heaven. Additionally, the trusty butt dyno confirms a noticeable power boost. 

Buyer is going to get a helluva great and very very rare and unique set of headers!