which cat back
currently i'm leaning towards Eisenmann race but i like the valved exhausts too.
Your OEM exhaust is partially made by Eisenmann (tips are from them)
AMG did a great job with the OEM exhaust setup. Really no need to change unless you are doing header work. I own the Eisenmann Race setup. Only other exhaust I will switch it out for is the Akra. But don't like the squared tips
I'm going a different route than everyone else, I've read thread after thread and can't find anyone that's done this. I'm gonna keep the stock headers and go straight pipe from them to the mufflers....I understand that headers are designed to make power but why couldn't I gain a hp figure somewhat close to what headers provide by just removing the cats? I've read countless threads and looked all over you tube for some type of relative build but no prevail. So I'm gonna try.....if it's not what I want than I'll get headers lol. But if the results are good I'll be happy spending 100 bucks to have the cats removed and replaced with straight pipes compared to 3k dollar headers
Your OEM exhaust is partially made by Eisenmann (tips are from them)
AMG did a great job with the OEM exhaust setup. Really no need to change unless you are doing header work. I own the Eisenmann Race setup. Only other exhaust I will switch it out for is the Akra. But don't like the squared tips

Eisenmann Race (catback only):
IPE (catback only - quieter than stock with valves closed.. and undistinguished with valves open.. so what's the point?):
IMO neither the IPE nor Agency systems retain the signature AMG throatiness and pulse. Sure they are loud, but I find them raspy and lacking in character.
Last edited by dcho; May 8, 2015 at 04:53 PM.
Your OEM exhaust is partially made by Eisenmann (tips are from them)
AMG did a great job with the OEM exhaust setup. Really no need to change unless you are doing header work. I own the Eisenmann Race setup. Only other exhaust I will switch it out for is the Akra. But don't like the squared tips



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It has Renntech Intakes / AFE Pro Dry Filters + Agency Power Headers + IPE Mid Pipes + Random Tech 200 Cel Cats Straight piped into the Eisenmann Race, which deletes the Resonator.
In all honesty guys, the Eisenmann Race setup doesn't come to life until you remove the secondary cats.
I hear you akmatic63 on simply deleting the Primaries and going straight piped all the way back. You will gain some power, but your issue is still at the merge collectors. Remember Long tubes are equal length (for the most part), they are designed to not only flow at a higher velocity, but to reduce exhaust turbulence which decreases power output.
Either way, good luck on your plan. Its always nice to see variances in setups.
PS: The car during normal driving is like stock with the secondaries and resonator deleted. The video below isn't mine, my buddy was in the car orchestrating the V8 Symphony.
PS: change the settings to 1080P for better sound / video.
Last edited by Kriston; May 8, 2015 at 09:03 PM.
I'm going a different route than everyone else, I've read thread after thread and can't find anyone that's done this. I'm gonna keep the stock headers and go straight pipe from them to the mufflers....I understand that headers are designed to make power but why couldn't I gain a hp figure somewhat close to what headers provide by just removing the cats? I've read countless threads and looked all over you tube for some type of relative build but no prevail. So I'm gonna try.....if it's not what I want than I'll get headers lol. But if the results are good I'll be happy spending 100 bucks to have the cats removed and replaced with straight pipes compared to 3k dollar headers
Because the bottle neck in the exhaust is in the exhaust manifolds.
Sure there is probably some in the rest of the exhaust but with the air being choked up front, there is not enough restriction in the remainder of the system to see much of a gain
I hear you akmatic63 on simply deleting the Primaries and going straight piped all the way back. You will gain some power, but your issue is still at the merge collectors. Remember Long tubes are equal length (for the most part), they are designed to not only flow at a higher velocity, but to reduce exhaust turbulence which decreases power output.
Either way, good luck on your plan. Its always nice to see variances in setups.
Insanely loud C63 AMG - YouTube
Last edited by akmatic63; May 11, 2015 at 11:07 AM.
https://mbworld.org/articles/c63-amg...t-competition/
https://mbworld.org/articles/c63-amg...t-competition/






