Johnny912

Alright guys I'm pulling the trigger on either a Agency power or the IPE now that'd be special pricing is being offered. Dont know which one do get, relatively similar pricing and both sound awesome. Any feedback on both systems about drone issues, fitment, ping sounds, or failures welcomed.

rentzington

i've liked the sound i've heard from the Akrapovic systems

JeffDL

wanted to make this thread earlier. how about through Agency Power, iPE and Eisenmann race in for choices. All are within $400 of each other i believe. Akrapovic is amazing but way way way too expensive.

currently i'm leaning towards Eisenmann race but i like the valved exhausts too.

Kriston

Are you doing headers? if so then the cat backs are definitely worth the investment. If you are simply adding a cat back. You won't gain any power.

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

Johnny912

Akra way to expensive. I really like Dr valve option , tame when needed and an animal when not.

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

dcho

I second the Eisenmann Race setup. Having listened to countless clips of other exhausts and having done a resonator delete myself, I realized how good of a job AMG did with the factory exhaust. and like Kriston said, Eisnenmann helped AMG develop their exhaust so you know that there is substantial R&D that went into the construction and SOUND.

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.

dcho

please share a clip of your setup!

Johnny912

Eisenmann does sound nice, but are they valvetronic? How loud would it be after going straight pipe from the headers to the mufflers?

dcho

Nope, no valvetronic. That was one of its selling points to me as I didn't want to bother with wiring and a second fob. I'm sure it would probably be fricken loud with a cat delete (if that's what you're asking).

Johnny912

Yes, I would like one of the valvetronic to atleast quiet the car down when I don't need want attention cruising around normally. But the route I'm going without a valvetronic exhaust it's gonna be unfavorably loud as a constant sound

akmatic63

That is the set up I have (Stock mufflers), and at idle and low rpms it isn't too loud but above 4k gets loud and screams at WOT. I still want my car louder though, so looking into other options from a muffler delete, AP valve, eisenmann or meisterschaft.

Kriston

Here is a clip of my car.

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.

Johnny912

Your car sounds amazing

Johnny912

Well I went ahead and got the agency...... Watching more n more videos and reading, seems to be the best Chou e for what I look to accomplish.

QWKSNKE

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

JeffDL

going with the eisnemann race. just looking for a little more noise.

Johnny912

Best of luck sir, looking foward to seeing your results!

akmatic63

Primary cats were already deleted with the header install and i deleted the resonator and secondary cats when I had the mbh x-pipe installed. Only have to stock mufflers, which Im planning on deleting. It i don't likehe the sound i can always go to the eisenmann race mufflers!

C Moe

cool thread. thought we'd bring it to the front page...
https://mbworld.org/articles/c63-amg...t-competition/

dcho

omg i'm a little embarrassed now.