cl65 downpipe upgrade
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Joined: Jul 2011
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From: LA CA
w215 cl65, W212 E63, R53 Mini Cooper JCW, E92 328I
cl65 downpipe upgrade
w215 05-06 cl65 bi turbo downpipe upgrade.....
i spoke to a very famous fabricator in california and i mentioned that i would like a cat less down pipe for my cl65.. so my point here is maybe if i can stir up enough people who are interested in downpipes for there cl65.. maybe i can get a GROUP BUY going and have it cheaper so we all benifit.. so if people are interested i will be having my downpipes made with in this mouth hopefully ( fingers crossed) i will up load pictures of the build and see if you guys like it
thanks
i spoke to a very famous fabricator in california and i mentioned that i would like a cat less down pipe for my cl65.. so my point here is maybe if i can stir up enough people who are interested in downpipes for there cl65.. maybe i can get a GROUP BUY going and have it cheaper so we all benifit.. so if people are interested i will be having my downpipes made with in this mouth hopefully ( fingers crossed) i will up load pictures of the build and see if you guys like it
thanks
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2015 Challenger Hellcat, 2023 Ram 3500, 2005 E55 Wagon, 2019 GLC63s
I know some venders sell them but for $900+ for a piece of pipe, that's beyond retarded. The only question I have is will the check engine light turn on because the cat is missing?
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V12-Biturbo
)Cost shouldn't be more than $400-$600 out the door for DP's cat delete alone...
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V12-Biturbo
Turbo's & SuperChargers are different in this aspect, maybe why you question it etc.. TurboCharged motors hate back pressure, NON TurboCharged cars need to scavange some of the exhasut gases. Turbos work best when there is a big pressure difference on each side of the Turbo.
The stock cats are really restrictive, DownPipes and a free flowing 3" straight pipe exhaust will allow higher boost. The waste gate can be disconnected or modified by multiple ways you will be able to boost till the car hits fuel cut-off... I've modded my SL600 to hit 700+ rwp 800+ rwtq on oem Turbs (Q16 + mods etc)
Last edited by Thericker; Apr 12, 2012 at 11:42 PM.
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V12-Biturbo
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The turbo won't make more boost off a down pipe. Yes, it will have the ability to make more but it won't have more boost unless you tune the ECU/wastegate to add more boost. The only way it will make more boost without any other modifications is if you have "boost creep" caused by the flow overwhelming the wastegate.
Yes, a turbo engine likes to flow and does not like restriction but neither does a supercharged engine. It is all about increasing exhaust flow and keeping your exhaust velocity high. Engines don't like backpressure. Then again, backpressure is not an accurate term and should not be used when talking about exhaust flow or velocity.
Your SL sounds awesome. Speedriven doing the work?
Yes, a turbo engine likes to flow and does not like restriction but neither does a supercharged engine. It is all about increasing exhaust flow and keeping your exhaust velocity high. Engines don't like backpressure. Then again, backpressure is not an accurate term and should not be used when talking about exhaust flow or velocity.
Your SL sounds awesome. Speedriven doing the work?
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w215 cl65, W212 E63, R53 Mini Cooper JCW, E92 328I
so i found a nice mercedes performance shop 1 hour away from my house and i have dropped my cl65 off allready to get the catless downpipes made from stainless steel.. i will be posting step by step pictures of this downpipes.. and who knows maybe if you guys like it we can get a group buy going so it will be cheaper for all of us
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The turbo won't make more boost off a down pipe. Yes, it will have the ability to make more but it won't have more boost unless you tune the ECU/wastegate to add more boost. The only way it will make more boost without any other modifications is if you have "boost creep" caused by the flow overwhelming the wastegate.
you pick a few hp/tq simply because the ecu is programmed to curb to a particular psi at stock volume of exhaust. bigger exhaust/intake etc all increase power because 17 psi at 2.5" pipe is less than 17 psi at 3" pipe air/ exhaust flow.
btw, some back pressure is good at lower and mid rpms- gives you more tq.
free-er exhaust moves the tq curve of an engine up in the rpm range.
thus usually when you do long tube headers/full exhaust mod you feel the car weaker in the low rpms, about the same midrange and more powerful up top.
Last edited by alx; Apr 30, 2012 at 08:15 AM.
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CL65, FJ80, Sportsmobile 4x4, Model X Plaid
so i found a nice mercedes performance shop 1 hour away from my house and i have dropped my cl65 off allready to get the catless downpipes made from stainless steel.. i will be posting step by step pictures of this downpipes.. and who knows maybe if you guys like it we can get a group buy going so it will be cheaper for all of us
I am interested as well...
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w215 cl65, W212 E63, R53 Mini Cooper JCW, E92 328I
the shop is located in huntington beach CA, the downpipes can be shipped to your location or u can come in and have it installed by the shop at extra cost, picture will be coming soon... remember more buyers the cheaper... ( application for 05-06 cl65 amg biturbo) im sure he has the downpipes for s65 and sl65 also
Senior Member
Joined: Feb 2010
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From: SoCal
CL65, FJ80, Sportsmobile 4x4, Model X Plaid
the shop is located in huntington beach CA, the downpipes can be shipped to your location or u can come in and have it installed by the shop at extra cost, picture will be coming soon... remember more buyers the cheaper... ( application for 05-06 cl65 amg biturbo) im sure he has the downpipes for s65 and sl65 also
I'm in. Let us know the details or PM.
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From: LA CA
w215 cl65, W212 E63, R53 Mini Cooper JCW, E92 328I
i just visted the shop and so far everything looks good.. the mounting flanges are made and now they are getting ready to make the piping... i hope everything works out good so we can get a group buy going
Thread Starter
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From: LA CA
w215 cl65, W212 E63, R53 Mini Cooper JCW, E92 328I
interesting thing i found out was that the SL class does not have a direct bolt on cat system. the whole exhaust system is 1 whole unit , so if your cats or mufflers go bad you would have to cut and weld a new part on... which got me woundering how my CL65 is going to be, becuase i only want a direct bolt in set up.. and lucky the CL is able to be disconected, so im happy to find out that the CL will be a direct bolt on kit..... so i guess all the SL and S class owners have to cut and weld a catless set up on there cars
Thread Starter
Senior Member
Joined: Jul 2011
Posts: 378
Likes: 1
From: LA CA
w215 cl65, W212 E63, R53 Mini Cooper JCW, E92 328I
downpipe update
i just got some pictures of the downpipes that is made for my cl65, hopefully we can get a group buy going for 2005-2006 cl65 catless downpipes at a reasonable price range....
this setup is 3 inch 304 stainless steel all mandrel bent piping. what do you guys think?
this setup is 3 inch 304 stainless steel all mandrel bent piping. what do you guys think?
