stg313

Has anyone tried to trick the valvetronic exhaust into leaving the valves open all the time? My 507 is leased, so I cannot change the exhaust....... Does anyone know how these valves are actuated? Is there an actual cable I could disconnect or an electrical circuit that I could run a new wire to to keep the valves open?

MaroonC63

What exhaust is on it? Usually valvetronic exhausts come with a remote where you can open and close the vales to your choosing.

stg313

Stock....... My exhaust does have valves in it, right?

C63-AMG

Not sure how to have them always on in a wide open position, but you can always adjust the TPS box to have them open at a lower RMP. I have the iPE branded ones but I am sure they work the same. Let me know if you need the PDF files.

C63-AMG

No, stock ones do not. They just sound awesome :-)

stg313

Ive been lied to haha thanks for clarifying that! Looks like I get to deal with my quiet exhaust for 4 years

Scottie46

It might sound quiet from the cabin but trust me. Our cars are reasonably loud. As for changing the exhaust with a lease. You can modify it however you like, it shouldn't void warranty as long as you don't touch the headers. And when your lease is up, you just put everything back to stock.

mr747

Ur exhaust does not have valves in it

chrisridebike8

Fold the rear seats down. It will sound insane!

Masorcas

Resonator delete cheap and reversible

alexmtl

I'm sorry, did you say quiet?

Scottie46

+1

TTA850

Absolutely not - headers are not that bad an install, make a world of difference in power, and give the car an incredible sound. As nice as they sound stock I agree too quiet. With headers now I start my car and… the neighbors are awake lol I want to delete the resonator for a touch more/different sound but don't want to cut my exhaust cause I'm a lease too, just do the mods sooner and you will really get to enjoy your car

Exacc

How come the car sounds mean-er when it is first started when it has been cold and sitting for a few days. Then after driving around and then re-starting it slightly warm, it doesn't sound as mean anymore?

papashango

Cause the engine has warmed up by that point. Cold start always sounds the best but only when the temperature is below that certain degrees.

papashango

If I were to do one exhaust mod for example deleting resonator, putting x pipe etc etc, what would you guys recommend? Remember the goal is to keep the AMG bark but just make it a little louder and have more pronounced and frequent throttle blips when downshifting. What are your suggestions?

I've always stayed away from chopping up the exhaust system with the fear of ruining my warranty but if I were to do one thing to get the above goal, what should it be?

Thanks

chrisridebike8

The car uses secondary air injection when the oil temp is below 90F IIRC. That's what makes cold start have that sweet, sweet bark. I scared myself yesterday. Hadn't started the car in about a week and the car roared to life in my garage with the windows open! I forgot how loud it is outside during a cold start. Can't wait to get headers!

ToXicXxX

I love when that happens! I remember about two weeks ago I was going to start my car in the morning and there was this asian lady across the way going to her car, she was carrying a coffee. I started my car, she launched the coffee about 15 feet in the air and shrieked. I couldn't help but laugh... Poor lady.

avery.whss

my car's been sitting in my drive way for almost a month now not running i miss hearing the sound, wish the damn EIS would hurry up lol

ab0bab0i

Pretty quiet compared to Maseratis and cars with engines in the mid/rear position.

jordanaf

+2

Quiet? Gotta be kidding. Or deaf.

Plus, a "Valves always open mod" would be the OEM exhaust.

Dieseldan9

iTrader: (1)

I just purchased this from Germany. It allows you to control the valves independently from the car.

So I have it set to start everytime with valves open and they don't shut automatically anymore like stock.

I will be doing a post about this but it is too damn cold here in New endgland to be working on my car

http://asr-component.de

Mr Jones

This is for W205 not W204. It doesn't connect to our C63's.

whisler117

Number of different opinions on this depending on who you ask. Cutting out cats, removing the resonator, swapping in an x-pipe, etc. I went for the easy and SMOG legal route and cut out my resonator. Cheap, quick and opened up the sound nicely. No drone, didn't alter the note, just louder. If you change your mind, it's easy to re-install.

amalgam

Sweet in for one, thanks!