tigerwoods2002

hey guys

Want to delete either secondary cats or the resonator.
What would do a greater sound improvement?

Do secondary cats also have a connection inside like the resonator- or are pipes straight through at this point?

abcut973

Both will help free up the airflow hence improve your exhaust sound and performance. You might loose the amg signature bark!

tigerwoods2002

Thought bark gets lost by adding x-pipe or Anything that crosses the exhaust Stream?

Straight or h-pipe should even get the bark stronger?

rentzington

Never cross the streams!

tigerwoods2002

Hehe

Girard@ACGautomotive

I'll comment since I've been playing around with this a lot myself on my own car.

Resonator delete only: IMO it's been the best overall sound. Not too loud. Still has the signature AMG grumble. Cold starts are nice and grumpy. You'll still get nice crackles on deceleration and downshifts sound great. I think for most everyone this is the way to go to get the extra sound you're looking for and what I do most for my clients.

Secondary Cat Delete (X-Pipe) and Resonator Delete: The sound is just way, way too smooth. Just don't do it unless you have long tube headers.

Secondary Cat Delete (H-Pipe) and Resonator Delete: This is the set up I currently have. I still hate it. Sound is way too smooth, almost similar to X-Pipe but a little more grumpy. The problem I think I found is we did the cross over pipe in too large of a diameter (matching the exhaust itself) and it has smoothed it out a bit too much.

Secondary Cat Delete (Straight Pipe) and Resonator Delete: This set up is straight up obnoxious. Some will like it, some (like myself) will absolutely hate it. It's loud. Standing behind the car and having it revved literally pierced my ears. Can I appreciate it? Oh yes, it sounds downright nasty. But daily driving the car it becomes old fast. And being a 30 yr old dude in a neighborhood full of 50+ somethings it's a bit embarrassing, even working for a performance shop.

Next for my car will be to try a smaller diameter H-Pipe too see if I can get a little of the grunt back and be a touch louder than just the resonator delete itself. If that doesn't accomplish it, the cats will go back in until I can do a full exhaust at some point.

Hope that helps!

tigerwoods2002

Thank you so much dude.
That was exactly the answer I was looking for

So resonator delete it will be. Daily driver here as well- don't want to have to wear ear plugs

AMG FTW

Mikes h pipe + resonator deletes = pure AMG goodness.
You get the keep the AMG bark and no drone in the car.

tigerwoods2002

Would Love to get Mikes h-pipe. But I am from Germany. Shipping and custom fees will be more than the pipe

itzjonjon69

I actually just ordered mike's power pipe cat delete and resonator delete (both straight pipes) from mike and they shipped out yesterday! Stay tuned...

there's a member here running the same exact setup and he said this, "nah its not that loud with normal driving, but you'll be able to hear it more than stock. its not annoying or have any drone. its a good sound. you'll still be able to hear convos and music. mercedes did a good job keeping the cabin quiet. but when you put the windows down…..holy ****"

AMG FTW

You get one locally built then. Heck just get eisenmann Exhaust system. Since you are in Germany I am assuming it will be way cheaper than the US prices

AMG FTW

Is the cat delete h-pipe? If not you will lose the AMG bark...

itzjonjon69

negative i went straight pipes on both the secondary cat delete and resonator delete!

ToXicXxX

Technically the bark is produced by the muffler. Removing secondary cats adds a fair bit of rasp, but I personally enjoy it. Removing the resonator makes the car a fair bit louder too.

This engine really needs a balance pipe though, the stock resonator serves this purpose.

ofcoarse, if you want loud, and you want it to sound like the Mercedes SLS AMG F1 Safety cars... Headers are the solution!

Pug63

Sounds so mean

Audemars

I removed resonator and 2nd cats; straight piped the res and X-piped the 2nd cats.

With a tuned engine, it sounds great. You lose a bit of low end 'grumble' which some people associate with signature AMG sound, but as a freer-flowing exhaust it crackles and pops with backfires easier. I find it roars better too. Definitely louder.
I'm planning to add LTH later for what it's worth. We're driving AMGs and exhaust note is one of the key experiences.

I don't think you'll like it as much without a tuned engine, as stock sound was optimized with stock exhaust. I found it far too quiet stock.

C63germany

Just a stupid question: Are the prim cats deleted with Long Head Tubes?

ToXicXxX

Yessir they are.

tigerwoods2002

I already have eurocharged v5 running.

Going for resonator delete new - guess with both changes I won't be on the road for too long before getting pulled over...

http://www.ebay.de/itm/SOUNDROHR-POW.../331354985764?

What do you think of this one?

tigerwoods2002

.

rentzington

Though if I remeber right for street use you add high flow cats behind the lth

ToXicXxX

If you live somewhere where emissions are monitored. We don't have that here, so no point for cats.

Sidv22

Thanks for this thread since I have been looking for a solution as well. I previously ran mike's straight pipes along with V5 tune. although the sound was awesome, it was a bit too loud for my liking. Will only a resonator delete produce the same level of sound without sacrificing AMG bark?

AMGPower88

Do both.

C63germany

Hmm i heard c63 without prim cats already. Sounds awesome in low revs but way to raspy und high in high revs. Is it the same with the headers?