Feeler|Group Buy on EP-1

Crafted from 304 Stainless Steel, these manifolds are bolt-on repalcements for the factory C43 AMG parts. This thread is to gauge interest and to answer any questions anyone may have on this product.
The EP-1's provided gains of:
+18 rwhp
+8 rwtq
CLK430 dyno with:
EP-1's
CLK55 AMG Airbox
Green Filters
Evosport Pullies
Hope this helps!
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I figured I would open up the floor to discussion for or against either side.
The Best of Mercedes & AMG
Cost:
Stainless is more expensive than mild steel, but that is offset when you add in the cost of having the mild steel coated. Stainless is also more expensive to build with.
Durability:
The stainless is a harder/stronger material than mild steel, and as it works it gets even harder/stronger. Stainless could eventually go through enough heat cycles that it may crack, but that should be years down the road. There are ways to help dissipate the heat and keep it away from the metal, ie coating. This is used to bring mild steel closer to the level of stainless.
In the end it could go either way, but the best would be coated stainless. From there its more about looks and personal preference. Coated mild steel can develop surface rust spots, but that's usually on under car exhausts.
-M
321 Stainless Steel
Coated 304 Stainless Steel
Raw 304 Stainless Steel/Coated Mild Steel
The cost per set would remain the same because, while 304 is a more expensive material to purchase and work with, this is offset when you add on another $150-$200 to coat the mild steel.
Would there be any advantage to coated 304 or would coating only improve looks?
Raw 304 Stainless Steel or Coated Mild Steel would be the way you would go depending on the vote of the masses? So many options. I feel dizzy. What is your preference Mel?
"Stainless could eventually go through enough heat cycles that it may crack, but that should be years down the road." 10? 20? There's probably no way to know, eh? If 304 could last till I'm 80 I wouldn't give a **** and by then I hope to have learned how to bi-locate and teleport myself.
"There are ways to help dissipate the heat and keep it away from the metal, ie coatinng." Can you say more about this?
You are a patient man. thanks DB
Its no problem!!! I want everyone to know how and why we do things.
That's raw 304 in the picture and 321 is more along the lines of what Kleemann uses for their headers.
There is an advantage to coating the 304, and by coating, I mean having it go through a process like the company Jet Hot does. Coating helps to keep the heat inside the header and move it out of the exhaust system.
I personally don't mind coated mild steel, that would be my preference. I just didn't want the membership to think they were getting short changed or getting a sub par product.
Would there be any advantage to coated 304 or would coating only improve looks?
Raw 304 Stainless Steel or Coated Mild Steel would be the way you would go depending on the vote of the masses? So many options. I feel dizzy. What is your preference Mel?
"Stainless could eventually go through enough heat cycles that it may crack, but that should be years down the road." 10? 20? There's probably no way to know, eh? If 304 could last till I'm 80 I wouldn't give a **** and by then I hope to have learned how to bi-locate and teleport myself.
"There are ways to help dissipate the heat and keep it away from the metal, ie coatinng." Can you say more about this?
You are a patient man. thanks DB
based on Evodude's argument and your preference I vote for coated mild.
Last edited by Ghostrider@P1 Performance; Sep 29, 2009 at 05:22 PM.






