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Yea, they are the same. I ordered the LTH. I will post pics as soon as I receive them, in 2 weeks probably. Both on their website and eBay they're listed at the same price. They're €1400 or so on their website plus 20% off right now. With currency conversion, that's around $1400ish. Not $2000 EUR is low against the USD right now which is good for US customers
Yea, they are the same. I ordered the LTH. I will post pics as soon as I receive them, in 2 weeks probably. Both on their website and eBay they're listed at the same price. They're €1400 or so on their website plus 20% off right now. With currency conversion, that's around $1400ish. Not $2000 EUR is low against the USD right now which is good for US customers
Make sure you get headers in a group buy, thats how you keep cost down. I know BenzWorks does header group buys for groups of 5. Just get 5 people together that want to do it and call up Serge at BenzWorks and get the pricing details. We got ours for $1,995
Make sure you get headers in a group buy, thats how you keep cost down. I know BenzWorks does header group buys for groups of 5. Just get 5 people together that want to do it and call up Serge at BenzWorks and get the pricing details. We got ours for $1,995
Is Benzworks true long tubes with a 4-1 collector?
Is Benzworks true long tubes with a 4-1 collector?
How's the finish and quality? Good dyno gains?
Very much so true LTH, and yes very good high quality welds, I should have got some pictures of them before putting them on. Haven't done anyone dyno pulls since putting them on I just sorted out some CEL's, intake gasket was leaking causing some miss fires. Should be doing a dyno pull after I replace engine mounts.
They should be delivered within a week I believe. They just left NJ USPS after customs (it was in customs for about 10 days!). We will see once they arrive.
Very much so true LTH, and yes very good high quality welds, I should have got some pictures of them before putting them on. Haven't done anyone dyno pulls since putting them on I just sorted out some CEL's, intake gasket was leaking causing some miss fires. Should be doing a dyno pull after I replace engine mounts.
This is great to hear. I'm currently torn between Benzworks and MHP. Both seem like great headers, it's all about price really and a group buy price for Benzworks seems very appealing considering all factors.
I'll look for your thread or please shoot me a PM with your results after the dyno, good luck man.
I just got my headers today. The weld is pretty good and it feels like a quality products so far. It came with an invoice from Friedrich Motorsport.
I will install them sometime soon when I get my car back from the dealer (maintenance and changing some parts on warranty while at it). Not sure if I'll be able to dyno it before the install but I'll try.
Everything I received is in the picture below (I have 200 cell cats I will install). But I have a few questions (sorry if they are newbie type of Q).
How do I know where each log of the manifold goes? Then Do I weld it in after it fits into the collector?
Also, looking at the pic (sorry for lightning, came home late after work today), am I missing any part or I should order anything to help with the install? There 2 O2 bungs and some extension, anything goes in the extension?
Headers look pretty good. Thanks for the pic. Can you measure the primary tube diameters? As for install, you're going to have to test fit each piece but the longer tubes go to the cylinders closer to the belt and get shorter as you get to the merge collector. Not sure about welding primaries to merge collector as these are slip fit headers and removal would mean cutting the welds. Those welded extensions look like for bolting some bracket to hold them together maybe.
thanks for sharing, yes they look fine weld and quality, one thing i don't like is that they are split fit, on my c32 i have split fit long tubes they drone and leak, i ended up welding them.
Is it me or does the left mid section pipe have a few kinks on the long end? Or is it the lighting?
Quality appears good,but like the poster above, I don't like that it's split fit. Make sure whomever does the install welds well to prevent leaks and other headaches.
Can you tell what type of stainless was used to manufacture? 409 or 304? Try the magnet trick...
Thank you so much for posting the photos. These headers have a few things I do not like. They do not have equal length primaries. While most headers are not equal length, they are at least closer than these. They are definitely mid length, not long tubes. This won't hurt you for peak power, but will hurt you in the mid range. I do not like slip joints for the collectors. There are 8 places the headers can leak and welding them will be painful. If you weld them in place, it might be hard to get all the tubes. If you weld them out of the car, they might not fit back correctly. I'm surprised there are no instructions with them. There is a post hanging off the collector, but how do you attach this post to the primaries to hold them in place? The last thing, the collectors are just plain 4 to 1 collectors, they are not merge collectors. Again, this will hurt slightly in power gain as the merge collectors use the venturi effect to help scavenge the exhaust flow.
Given all that, I'm betting they will work fine, hopefully the slip fits are tight enough they don't leak and as I said, you will still get a nice peak horsepower gain. Thanks
2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Originally Posted by BLKROKT
They're not comparable. It's cheap for a reason.
Man.... I hate to say I told you so. They look ok, with the comments above being correct (can't stand that you don't have one uniform and unbroken flange for each head). But when you take into account the work and cost it's going to take to get these to fit and perform correctly, you'll be at the same price point as the more expensive headers and likely not performing as well. Hope you can get them to work out ok.
2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Originally Posted by Jasonoff
But they're not completed like the $3k ones.
I wonder how you would even complete these? Honest question. Do you just bolt up each primary into place on the head, slip into the collectors, and call it a day? Or do you have to weld the primaries together somehow once everything is bolted up (and how would you find the room to do this while installed in place)? Or would you have to create some sort of jig so you could do outside of the engine bay? And do you do this welding when hot or cold - certainly the heat these will see will have some sort of effect on hot-vs-cold fit? And how do you make sure each individual flange stays aligned in the heat cycling process? Ugh, so many questions I just don't know man.... this really is an unfinished product. Yeah getting the bends right is half the battle, but now fitting this jigsaw together without any leaks or fit issues.... jeeeeeez.
But when you take into account the work and cost it's going to take to get these to fit and perform correctly, you'll be at the same price point as the more expensive headers and likely not performing as well.
those headers look similar in design and weld quality to many headers that cost more then 3000$.
Design and weld quality, I agree with you 100%.
But that's not all it takes to have an outstanding long tube header, these aren't even close to being a true long tube. And the price explains why they're cheap in comparison. To get these to install status would be enough headache for me to say NO.
Man.... I hate to say I told you so. They look ok, with the comments above being correct (can't stand that you don't have one uniform and unbroken flange for each head). But when you take into account the work and cost it's going to take to get these to fit and perform correctly, you'll be at the same price point as the more expensive headers and likely not performing as well. Hope you can get them to work out ok.
It's funny how some members only consider the cost of the headers, but don't realize that the labor hours for more complicated header installs will quickly raise the price back up to a completed set of headers. Good luck with identifying exhaust leaks and fitment issues if they aren't installed correctly.
Thanks for posting your concerns guys only way to make sure everything goes smooth. For anyone that things this set is not complete, what is it missing? iPE and Agency headers are pretty much the same. Does anyone have the measurements of their header (length and width) for MBH, MHP, AP, iPE, Gintani, Benz Works, and anything that comes to mind? That would be appreciated.
The bends, length, and other stuff contributes to the back pressure and whatnot. I personally will see the final numbers at the dyno and compare to everyone else. I would say these are longer than mid-length, and just a little last LTH.
As of the leaks, I'll install with a friend of mine and once its up on the lift, will make sure it comes down with no leaks does Agency Power and iPE ship their headers assembled? From a review I've seen, I don't think so. At the end of the day, I'm not a weekend warrior or I track the car regularly (maybe I don't even go) so extra 10 hp *not gained* vs paying extra $2000 on headers won't hurt me
The length of the shortest header pipe is 16". Longest is 25".
Width of midpipe is approx. 2.75". The primary tube diameter is approx. 1.75". Attaching pictures (just did them measurement on the fly).
The collector's length is approx. 13"
The material is pretty good IMO. Just the lighting kinda sucks in pictures.
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EUR is low against the USD right now which is good for US customers 
only way to make sure everything goes smooth. For anyone that things this set is not complete, what is it missing? iPE and Agency headers are pretty much the same. Does anyone have the measurements of their header (length and width) for MBH, MHP, AP, iPE, Gintani, Benz Works, and anything that comes to mind? That would be appreciated.
