HardC63

Hello guys,

Please help me decide on my next move. Before anyone decidesto tell me to use the research button, I’m here to tell you that I did, overand over and I even research YouTube.

A little background, used to own a 2008 E63 which sufferedwhat Benz call an engine failure due to the lifters. They got me out of that vehicle and I havenot been with MB until recently – a super clean one-owner 2009 C63 AMG; I couldn’tpass up the deal.
Here is what I’m trying to do: I want to get a little more oomph from the exhaustsounding department. I love the way it sounds now (the exhaust is currently totallystock), but I think it needs a little more boom…just a little more.

I’ve seen videos of many guys with secondary cats & Resodelete. I did find a couple of videos illustratingsecondary cats delete only and a lot more with Reso delete only…but most videoshave both secondary cats and resonator deleted. My thing is, I do not want to lose the classic signature deep sound ofthe car, many of the videos I found seemed to have lost that deep sound andbecome raspy, almost like the old (’98 –’00) LS1 Camaro. Honestly, in terms of sound, I much preferthe older (’93-’97) LT1 Camaro exhaust sound – they were deep and non raspy.

Please tell me, which approach will net me the BEST NON-DRONINGDEEP SOUND: second cats delete and replace with X-pipe OR Resonator delete and replacewith X-pipe. I’m doing one or the other;I am not planning on doing both, and I am not planning on buying headers. And, I'm not looking for crazy loud, just a little more juice from the exhaust, that's all.

Thank you in advance for your help

HardC63

MaroonC63

Secondary cat delete with straight pipes. Closest to stock as you'll get. Resonator delete changes the bark much more.

HardC63

Cool, thank you for your input.

So - NO X-pipe in place of the Secondary Cats?

Straight pipes is certainly cheaper to do.

Thanks,
HardC63

Petakii63

Xpipe will kill the amg bark. If you delete your resonator and replace with straights, it will sound unrefined and kinda like s**t. If you want more sound. Delete the sec with straights

abcut973

4 words MIKE's POWER PIPE ! lol

https://mbworld.org/forums/c63-amg-w...uy-thread.html

E=mC63

I put a H Pipe to replace my 2ndary cats and a straight pipe for my resonator. Dont worry it still kept the original bark. Best decision I've ever made, Mikes power pipe does wonders.

HardC63

Hmmmm...are you sure sir?

I've seen and heard some C63's with deleted resonators and they sounded meaner...yes, but very raspy. I can't tell you if those were straight pipe or X-pipes in place of the resonator.

Thanks,
HardC63

USCGTO

Is there a diagram pointing to location of secondaries and the resonator ?

vtune

remove the secondary cats, install straight pipes. leave resonator stock. sound is pure amg, but louder and deeper. also no increased cabin noise until you push it

fightex

- X'ing the 2nd cats make it sound smoother and more refined (kills AMG bark)

- straight piping the resonator makes it sound really raspy (because it actually has a small H built in) and unrefined.

My vote is to straight pipe the 2nd cats. Same tone as stock but more volume.

P.S fold the seats down once you delete the 2nd cats. Sounds perfect.

HardC63

Cool!

Second cats delete with straight pipes it is.

Thanks for the tips on the rear seats fold down.

HardC63

Guilty

Mike's pipe if you want to keep a non obnoxious, authentic AMG sound. Forget about the rest.

rage2

Flip down your back seats haha. Best exhaust mod ever.

CMC-63

Kinda confused where these opinions are coming from? I have a straight pipe resonator delete and I do not hear any of these claims. The sound is certainly more raw then stock, but the sound is essentially the same but louder, still has the amg bark and thump. Seems like people are just getting these opinions from nowhere

HardC63

HMMMM....

I wish someone could post an Idle & Rev clip(s) of these vehicles next to each other as the following:

C63 - stock
C63 - secondary delete only (H-pipe)
C63 - resonator delete only (straight and/or X-pipe)

I know this would be hard to pull off, but only if...

roadtalontsi

you need the akropovic exhaust, yea its expensive but if you dont want the rasp you've got to pay. Improving any sort of flow and not changing the stock mufflers thats what you'll get is rasp. and rasp sounds like ***.

ld63

OP, I was after the same thing.

I installed Mike's power pipe (straight pipe variety - replaces only secondary cats, leaves stock resonators) and am happy with the result. It still behaves when you need it to, but gets an extra loud, deep AMG sound when you press it. I reviewed on the main thread.

I suggest starting with this relatively-inexpensive mod. If you want more, then maybe mod your resonators too.

HardC63

Thanks Larry - got it, will do

dcho

from personal experience, res delete got the car LOUD, but it was too raspy at the top end, meaning it had this raw snap/fart sound.

I then got the eisenmann race exhaust - which drones like a B, but found that it is very livable for daily driving, and that the drone can be avoided using the paddle shifters. 65-78 mph, use 6th gear. 78 and beyond, 7th is ok. ultimately tho, it retains the amg bark and thump, but in a louder, deeper fashion.

OlegKouz

This. My car has the original AMG bark just louder.

sytfu_colan

Same here, I think people get resonator and 2nd cats mixed around a lot.
All a resonator does is muffles sound. If anything, the removal of the resonator just amplifies the sound.

CMC-63

Yes, and for those who don't like the more raspy sound from the resonator delete should just go for the h-pipe replacement instead of the straight pipe. The resonator is essentially a sound muffler with a small h-pipe built in. Mind you that once you do a straight pipe delete, you can go back to the shop and pay a little extra to get an h-pipe put in if it really does bother you a lot.

OP, tonnes of people have resonator deletes, cat deletes, exhaust systems, etc, and I have yet to hear a single member unsatisfied with their decision. My resonator delete only cost me $150, so keep that in mind (there are also more expensive options, but IMHO I don't really think there's a noticeable difference).

The car will sound different regardless of what you delete, but I guarantee you OP that you would never look back. The amount of backfires and the sound of going over 4k sends the giggle meter through the roof. No video will do it justice

Petakii63

You need to have some kinda balance between the exhaust. You can't have the secondary cat delete straight piped and the resonator straight piped at the same time. It will sound stupid loud and on top kill your bottom end torque. The smartest thing to do is delete the secondary cats with a straight pipe. See how you like that. If you want more them go from there.

USCGTO

I think I am gonna do this on way back home...

Mort

Excellent idea....