High Flow cats...
Thread Starter
Super Member
Joined: Oct 2005
Posts: 846
Likes: 1
From: Miami, Maracaibo, Bogota
not stock.
High Flow cats...
I want to eliminate the secondary cats and replace the main cats with high-flow cats....
will these do the trick with the CEL ?? http://cgi.ebay.com/ebaymotors/ws/eB...2BSI%26otn%3D3
any suggestions welcomed
will these do the trick with the CEL ?? http://cgi.ebay.com/ebaymotors/ws/eB...2BSI%26otn%3D3
any suggestions welcomed
MBWorld Fanatic!
Joined: Sep 2005
Posts: 6,194
Likes: 242
From: Albuquerque
'10 CL550, '12 GL550
What a joke!
You'll never ever find better catalytic converters than those that came on your car.
They ain't $2K each for nuthin'.
'merikun iron hot rod tricks are irrelevant to German cars and accomplish zip/zero/nada.
You'll never ever find better catalytic converters than those that came on your car.
They ain't $2K each for nuthin'.
'merikun iron hot rod tricks are irrelevant to German cars and accomplish zip/zero/nada.
Thread Starter
Super Member
Joined: Oct 2005
Posts: 846
Likes: 1
From: Miami, Maracaibo, Bogota
not stock.
but i know they are restrictive... i want HIGH FLOW... the ones on the car arent high flow..
Senior Member
Joined: Feb 2005
Posts: 303
Likes: 0
From: orlando, florida. Dr.Phillips, UCF
04 CLK 500, 07 GSX-R 750, S 550, 09 Jeep GC
could be a gamble. i have the secondary cats removed on my car, and I am also looking to go to highflow cats, i'm guessing the safest way would be just to use o2 simulators inplace of the factory sensors so you won't trip the dreaded CEL or check engine lights.
Senior Member
Joined: Mar 2003
Posts: 328
Likes: 0
From: virginia beach
clk 500 (wifey's); 350Z roadster (daily driver); 350Z coupe (track car)
However, even with ceramic, the engine will be significantly louder under acceleration. You also run the risk of throwing a CEL.
Senior Member
Joined: Mar 2003
Posts: 328
Likes: 0
From: virginia beach
clk 500 (wifey's); 350Z roadster (daily driver); 350Z coupe (track car)
I want to eliminate the secondary cats and replace the main cats with high-flow cats....
will these do the trick with the CEL ?? http://cgi.ebay.com/ebaymotors/ws/eB...2BSI%26otn%3D3
any suggestions welcomed
will these do the trick with the CEL ?? http://cgi.ebay.com/ebaymotors/ws/eB...2BSI%26otn%3D3
any suggestions welcomed
Senior Member
Joined: Feb 2007
Posts: 383
Likes: 0
From: Peoria, Arizona
RENNtech C32 AMG
little to no gain from stock AMG cat to aftermarket, unless your stock cats are clogged. Keep in mind these are a complete biatch to get to and labor is gonna get you for more than the cats are worth. I don't know for a fact if the stock AMG cat is different from that of the SLK320, but I assume they would be. Good luck finding a muffler shop to touch them too! 6 out of 10 refused to touch them, the rest said why bother, since the AMG ones are already high flow, and high quality (they actually REFUSED BUSINESS!!) Parts and labor were roughly $500-600!!
I went with just the secondaries deleted, res deleted, AMG muff, and I get a little metallic rasp under hard acceleration. Might be due to the aluminium/steel pipes used instead of thick SS piping.
I went with just the secondaries deleted, res deleted, AMG muff, and I get a little metallic rasp under hard acceleration. Might be due to the aluminium/steel pipes used instead of thick SS piping.
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