400HP55

Ok guys, after our rants and raves about not being able to purchase headers for our cars and such here is what we have came up with.

This thread will be updated as soon as I find out information.

I'm sending my old heads and exhaust manifold to a header shop. He's gonna use the heads and the exhaust manifold to build us a header out of 304 stainless steel. Price is TBD.

We want to know if anyone has any suggestions on what size of tubing to use for the collector. The primaries will be 1.54" coming off the head.

The back of the header where it bends will be 2.25" in order to connect to some 300 cell high flow cats for our primaries.

Here are some pics of the parts/measurements being used thanks to Sharduls thread.

I also attatched some of his work.

da_guitarist

Sick, subscribed. Hoping for a good price . Great work amigo

AMG_FL

Let me know when the set is built. I have Kleeman headers on now and would be interested in an upgrade.

Chuck

400HP55

Hey guys. I had to leave the state for work for a month. He has our manifold and is working on the flanges and primaries. When I get back I have to send him my heads. Stay tuned...

blackbenzz

How will he know the constraints of the engine bay and steering box without a car? I'm interested in longtube headers at larger diameters with 3" collectors

400HP55

He's gonna follow the same exact design as the OEM ones except larger diameter tubing. It should be 2.25 inches from the header to connect to the 2.25 inch primaries cats. The primary inlet from the head to the header will be 1.54 inches and the collector should be around 2". We will have to wait and see. I'll ask him about your long tube.

400HP55

A water fall design is also up in the air.

$900 is what we are thinking for the headers. Possibly $800

Ausmbtech

A set of headers that would be RHD compatible (most likely shorties) would be great if you're looking for a wider market. Nothing is currently available off the shelf for RHD. I'd definately be interested in some larger diameter headers.

ProjectC55

If these come out nice my Kleeman headers are for sale!!

400HP55

Were working out the details but we may have a price change because of the quality of steel being use but only like 100 thats it.

Its gonna take about 40 hours to develop the headers and about 800 dollars worth of steel.

KJI3jflarryfe93

are they going to fit C43 AMG with factory engine and not 55 conversion?
are these headers plug n weld to existing pipes?

how is the quality of them headers?
any expectations of weld cracks in the future?

400HP55

These are being made for the W208 CLK55. I am not sure if they will fit your C43. They will not be plug and weld. They will be a direct OEM fit. The quality is as good as it gets. As for now we are trying to weld with the best stainless steel material.

Once these are built then we will see about RHD and long tube headers.

ProjectC55

W208 CLK55,CLK430,C43 all use the same headers. There is no physical difference externally between the 4.3 and 5.5L motor.

KJI3jflarryfe93

it's only w210 E55 headers that don't fit w202?
if buying headers do I have to send my ecu to a tunershop to remap software?
or is it enuff mounting headers and then drive the car?

da_guitarist

BUMP! Update request

400HP55

Just got back into the states. I need to leave again in one week though =/

I'm trying... I'll see if I can send him the head this week.

da_guitarist

Easy to ask for updates when we're just kicked back chillin with a brew

Tommy_s4

will these headers fit a w210 e55?

da_guitarist

BUMP!

400HP55

I have just got back home. I will be back on the west coast for a while. Were going to start on it again. Sorry for the delay but I got super busy. I may start again this week but we'll se how the holidays go

GatorMB

You might want to consider that modifying the factory exhaust might reduce low end torque while increasing top end HP.
I kinda like the off line performance of the factory exhaust with a 2:65 gear.
Altering the torque range with a 3:00, 3:27 gear with or a 7 speed transmission might be the ultimate combination with the headers.
The later 5.5L are 32 valve as well. Ours are 24.
The headers will definately increase the db level and produce a healthy exhaust note.
Try to get a before and aft dyno spreadsheet, You might be on to something here.

400HP55

Where can I get the main flange? The one that bolts to the head.

Thanks guys. Were getting there now that I have time! Stainless Steel 304 tig welding with nitrogen.

SWEET~

GatorMB

The best flange is one cut directly from a factory exhaust manifold.
I fabbed a set of headers for an engine swap one time using the flanges from the new engine and piping for veichle (ford truck). Worked well.
Other steel fabrication can be acomplished with a plasma cutter and a steady hand.
I didnt have these but made a cardboard replica of an engine mounting plate for my tractor (ford) and brought it to a welding shop that had it ready the next day less holes and minor finishing was only $40.00.
I would start with a gasket and determine flange thickness, Bolt clearence and type for an easy install and try not to dimple the pipes too much.
Cheers, Gator

benzslo

If you're just copying the exact same factory manifold with bigger tubes, there will be little gain if any. You need a true header with a collector, something that bolts to stock cat is not going to cut it and especially if there is no collector. it's really just a manifold then, not a header.